================================
PDFlib 9.2.0 (February 06, 2019)
================================

- 2019-02-06 (bug #6341)
  Fixed warnings generated about variables being clobbered by 'longjmp' or
  'vfork' when compiling the C++ binding with g++.

- 2019-02-05 (bug #6340)
  Added exception handling for non-PDFlib exceptions to all C++ samples.

- 2019-02-04 (bug #6240)
  Some sample programs contained "errorpolicy=exception" in PDFlib API calls
  where the actual intention was to specify "errorpolicy=return" to
  override the globally set option "errorpolicy=exception".
  
- 2019-02-04 (bug #6338)
  After the fix for bug #6141 the symptoms of bug #6011 had reappeared.

- 2019-02-04 (bug #6339)
  When using the "gstate" option of PDF_fit_image() the "cm" operator for
  setting the current transformation matrix for the XObject was written
  before the "gs" operator for setting the parameters from the specified
  graphics state parameter dictionary. This only was a problem when the
  graphics state parameter dictionary contained a luminosity softmask as
  its geometry did not match the geometry of the XObject then. The order of
  the "cm" and "gs" operators is now reversed by the fix.

- 2019-02-04 (feature #2440, feature #2460)
  Modified the PDFlib Mini Edition configuration to further reduce its
  memory requirements. Among other changes, support for OpenType CFF fonts
  has been enabled, while support for PostScript Type 1 fonts, built-in
  encodings, internal glyph name tables and runtime logging has been disabled.

- 2019-01-30 (feature #2451)
  Improvements for Tagged PDF and PDF/UA import:
  - Improved the checks for invalid Hx header hierarchies when importing PDF/UA.
  - The additional PlibASpan tag which is inserted by PDFlib when importing
    Tagged PDF pages was not correctly taken into account by the
    "fittingpossible" test.
  - When importing a page with a direct Note, Span, Quote element (formerly
    incorrectly called "inline" element) as top-level element, the tag was
    wrongly treated as "direct" and rejected by the nesting check. 

- 2019-01-30 (bug #6334)
  Glyphs from symbol fonts can be addressed with standard Unicode values if
  they have standard glyph names according to the Adobe Glyph List with a
  Unicode mapping. After the fix for bug #6011 these glyphs could only be
  addressed via PUA values.
 
- 2019-01-30 (bug #6333)
  On Windows platforms the logging for logging class "image=5" could produce
  the unexpected log message "Unknown printf format '%I64u'" when processing
  damaged TIFF images. 

- 2019-01-29 (feature #2421)
  As a consequence of feature #2218 the shipping data files in all PDFlib
  packages are reduced significantly in file size and count.

- 2019-01-29 (feature #2418)
  Modernized the supplied programming samples for all supported development
  environments. This included removal of deprecated samples and highly
  specialized aspects (e.g. SING fonts), replacement of old-style API usage
  and introduction of convenience features. All external font files have
  been switched to the NotoSerif font family.
 
- 2019-01-29 (feature #2214)
  Switched the Android builds to SDK 28.0.3 and a newer build environment.
  The binaries now support ARM 32-bit and 64-bit as well as x86 which is
  relevant for the emulator.

- 2019-01-24 (feature #2459)
  Removed unneeded features from the libtiff configuration.

- 2019-01-24 (bug #5484)
  In the IBM iSeries RPG binding the buffer size was increased for the "text"
  parameter of the following functions:

  - PDF_add_table_cell()
  - PDF_add_textflow()
  - PDF_create_textflow()
  - PDF_fill_textblock()
  
  The buffer size for the return value of PDF_convert_to_unicode() was also
  increased.

- 2019-01-24 (feature #2458)
  Consolidated the use of common XObject options in PDF_load_image(),
  PDF_load_graphics(), PDF_open_pdi_page(), and PDF_begin_template_ext() to
  ensure that all options are supported by all functions where they make
  sense.

- 2019-01-21 (bug #6328)
  The PDFlib PHP module could not be loaded with PHP 7.3 Windows 64-bit (ZTS).
  
- 2019-01-15 (feature #2431)
  Recognize the font file name suffixes *.otc and *.OTC for OpenType CFF
  font collections. (Since OTC fonts are identical to TTC they were already
  supported, only the suffix detection is new).

- 2019-01-15 (bug #6327)
  Building PDFlib from source without PDF_FEATURE_LOGGING defined could cause
  massive heap memory usage.
  
- 2019-01-14 (feature #2432)
  Un-deprecate the "Sect" and "NonStruct" structure elements in anticipation
  of pending changes for the PDF 2.0 dated revision ISO 32000-2:2019.

- 2019-01-14 (feature #2455)
  Work around the possible user error of forgetting the "mask" option for
  1-bit images which are later used with the "masked" option of another image.
  PDFlib now emits /SMask instead of /Mask also for the 1-bit case unless
  prohibited by PDF/A-1 or PDF/X-1/3 standards requirements.

- 2019-01-14 (feature #2445)
  Implemented stricter checks for the "id" option of the "Note" element to
  ensure PDF/UA-1 conformance. ID attributes of regular (but not direct)
  "Note" structure elements in imported documents are made unique by adding
  a suffix if required.

- 2019-01-14 (feature #2315)
  Implemented the tagging option "direct" as successor of the deprecated
  "inline" option to fix an unfortunate historical naming conflict in the API
  and Tutorial.

- 2019-01-08 (bug #6314)
  To work around an unjustified error message in Acrobat about a missing font
  PDFlib now forces embedding of a CID font also under the following conditions:
  - Only text with "textrendering=3" (invisible) was produced with the font.
  - PDF_load_font() was invoked with option "optimizeinvisible=true".

- 2019-01-02 (feature #2452)
  The tagging options "inline" and "direct" are now allowed for the "Lbl"
  element if used as child of BibEntry, TOCI or Note to match its use in
  PDF 2.0.

- 2019-01-02 (feature #2447)
  PDF_create_annotation() didn't enforce the PDF/UA-1 tag nesting rules for
  Link and non-Popup annotations.

- 2018-12-31 (feature #2438)
  Tagged PDF import: many real-world documents contain invalid trailing null
  bytes in the Alt or Lang attribute strings. These have previously been
  represented as U+FFFD REPLACEMENT CHARACTER in the output. However, Acrobat
  displays U+FFFD as a garbage character (unlike a null byte which is silently
  ignored). PDI now removes the incorrect trailing null bytes.

- 2018-12-31 (bug #6294/REOPENED)
  The fix for preserving empty table tags didn't work if the PDI document
  was opened in document scope.

- 2018-12-31 (bug #6315)
  XMP parser: namespace declarations in the "rdf:RDF" node were not read
  correctly (as opposed to the more common use in "rdf:Description"). As
  a consequence of this bug PDF/X standard identification with pCOS didn't
  work correctly for some documents.  

- 2018-12-21 (feature #2435)
  Adjusted the COM installer and samples to use the same directory structure
  and searchpath as the other packages.

- 2018-12-20 (bug #6309)
  Adjust the BBox attribute of structure elements of imported Tagged PDF
  pages to the new location on the page.

- 2018-12-20 (feature #2441)
  Add @Deprecated annotations (in addition to the existing @deprecated
  Javadoc comments) to the Java wrapper. This raises the minimum required
  Java version to 1.5.

- 2018-12-17 (bug #6311)
  A layer construct created by InDesign could cause PDF_open_pdi_page() to
  fail with "Illegal array index XXX in function pdc__vtr_at" when
  importing a page with uselayers=true.

- 2018-12-12 (bug #6305)
  Fixed a use-after-free that occurred with fonts with fallback fonts
  being loaded in object scope.

- 2018-12-12 (bug #6300)
  PDF_info_text() with keyword "missingglyphs" could return incorrect
  results if Unicode control characters or glyphs from fallback fonts were
  present in the text.

- 2018-12-12 (bug #6299)
  PDFlib created unnecessary ActualText if the application of OpenType
  features changed glyphs and the Unicode mapping of the resulting
  glyphs did not change compared to the original glyphs.
  
- 2018-12-12 (bug #6298)
  PDF_fit_textline() option "justifymethod=wordspacing" did not create
  justified text output when glyphs from a fallback font or Unicode control
  characters were present in the text.

- 2018-12-12 (bug #6297)
  PDF_fit_textline() option "justifymethod=wordspacing" did not create
  justified text output when glyphs from a fallback font or Unicode control
  characters were present in the text.
  
- 2018-12-12 (bug #6296)
  Kerning didn't work for glyphs taken from a fallback font.

- 2018-12-12 (bug #6295)
  Using Unicode control characters like ZERO WIDTH NON-JOINER could prevent
  the application of OpenType features to glyphs near the character.

- 2018-12-12 (bug #6293)
  Some OpenType features didn't work for glyphs taken from a fallback font.

- 2018-12-12 (bug #6285)
  Using Unicode characters like NO-BREAK SPACE or NARROW NO-BREAK SPACE in
  textflow could result in insertion of arbitrary glyphs into the text if
  the line-breaking algorithm had to insert a line break near the character. 

- 2018-12-10 (feature #2400)
  Eliminated the font error "Fallback fonts are not possible" when the option
  "fallbackfonts" was applied to an OpenType font with the maximum number
  of glyphs (65536 for TT outlines, 65535 for CFF outlines). In the course
  of rewriting the affected code a number of text- and font-related bugs
  (mostly related to the use of fallback fonts) were detected and fixed which
  could happen for smaller fonts as well.

- 2018-12-10 (feature #2429)
  Updated the installers for the .NET Classic and COM packages.


===================================
PDFlib 9.1.2p10 (December 04, 2018)
===================================

- 2018-12-04 (feature #2433)
  The "lang" option of PDF_begin_document() is now required in PDF/UA-1 mode.
  This is necessary because the natural language for some items cannot be
  declared otherwise, including the required dc:title XMP property. This
  also fixes some PAC validation problems with missing language identification
  of bookmarks, form fields and annotations.

- 2018-12-04 (bug #6292)
  On z/OS the C++ example programs were not compiled with the necessary
  compiler option 'CONVLIT(,UNICODE)' for encoding wide-character literals
  as UTF-16. This resulted in the unexpected error message "Option
  'outputformat' has bad keyword 'ebcdicutf8'" when executing any of the
  example programs.

- 2018-12-04 (bug #6294)
  Refined the fix for bug #6134 since empty table elements could still be
  dropped when importing a page with tags. If an imported TD element
  contained an empty P element, not only the empty P was removed but also the
  containing TD, resulting in a damaged table structure. Similar logic has
  been implemented for Lbl and LBody list elements. Note that while empty
  elements are allowed in PDF/UA-1 this practice is not recommended.

- 2018-11-21 (bug #6290)
  Added a heuristic to PDI for malformed xref sections which don't take the
  first entry (start of the free list) into account, i.e. counting from 1
  instead of from 0.

- 2018-11-21 (bug #6289)
  In textflows OpenType features were disabled for the base font when glyphs
  from a fallback font were used as well.
   
- 2018-11-21 (bug #6287)
  Using OpenType features in connection with fallback fonts could result in
  truncated text or in the incorrect error message "Option 'fontsize' has
  bad value 0".

==================================
PDFlib 9.1.2p9 (November 15, 2018)
==================================

- 2018-11-15 (bug #6277)
  On Alpine Linux the .NET Core binding failed with the error message
  "System.DllNotFoundException: Unable to load shared library
  'PDFlib_dotnetcore_native' or one of its dependencies".
  
- 2018-11-13 (feature #2384)
  Added support for PHP 7.3.

- 2018-11-09 (bug #6278)
  When colorizing PNG images containing a tRNS chunk with a bit depth other
  than eight an incorrect color key mask array was produced.
  
- 2018-11-09 (bug #6276)
  PDFlib did not accept i5 license keys for AIX binaries used in the
  IBM i5 PASE environment.

- 2018-11-08 (feature #2337)
  Implemented the "chromakey" option for PDF_load_image().

==================================
PDFlib 9.1.2p8 (November 06, 2018)
==================================

- 2018-11-05 (feature #2336)
  Implemented the "decode" option for PDF_load_image().

- 2018-11-05 (feature #2051)
  Added support for .NET Core.

- 2018-11-05 (bug #6270)
  Added 32-bit builds with 64-bit integer support (compiled with
  "-Duse64bitint") for the Perl 5.24, 5.26 and 5.28 bindings.

- 2018-10-29 (bug #6188)
  Fixed several places where a single-byte string could be mistaken to be
  a UTF-16 string.

- 2018-10-29 (bug #6260)
  Bidi symmetrical swapping did not work as expected for fallback fonts with
  shaping.
  
- 2018-10-26 (bug #6198)
  PDF_fill_graphicsblock() failed with an unjustified "Unknown option" error
  message if the option list started with an UTF-8 BOM in non-Unicode-capable
  bindings or if the option list contained non-ASCII characters in
  Unicode-capable bindings.
  
- 2018-10-26 (bug #6259)
  Unicode-capable language bindings incorrectly substituted characters
  references in option lists when global option "charref" was set to true.
  Character references are not substituted in option lists in general, except
  in options with the Unichar data type.
 
- 2018-10-26 (bug #6261)
  PDF_convert_to_unicode() now accepts a NULL value for the "outputlen"
  parameter in the C binding if the "outputformat" option has the value "utf8"
  or "ebcdicutf8".

- 2018-10-26 (bug #6262)
  In Unicode-capable bindings an error message about an invalid UTF-8 sequence
  was truncated for certain invalid UTF-8 sequences.

- 2018-10-24 (feature #2406)
  Added support for Alpine Linux with musl libc.

=================================
PDFlib 9.1.2p7 (October 15, 2018)
=================================

- 2018-10-15 (bug #6246)
  Fallback fonts with shaping could result in wrong bidi reordering if
  neutral characters appeared at the border between master and fallback font.

- 2018-10-14 (feature #2341)
  Reject ICC profiles with data color space Lab. Previously these were
  accepted although the color engine wasn't prepared to deal with ICCBased
  Lab color specifications and therefore triggered an exception.
  
- 2018-10-10 (bug #6251)
  Implemented code signing for DSOs on macOS. Previously the unsigned PHP DSO
  made it impossible to use the PDFlib PHP binding on macOS Mojave. 
  
- 2018-10-10 (bug #6256)
  php-550-nts-VC9 is no longer delivered.
  
- 2018-10-10 (feature #2399)
  Removed the unused Cobol binding from the MVS package.

- 2018-10-04 (bug #6245)
  PDFlib could crash in PDF_end_document() after importing a document with an
  empty default viewing optional content configuration dictionary while
  specifying "uselayers=true" for PDF_open_pdi_document().
 
- 2018-10-04 (bug #6241)
  The minimum supported macOS version is now macOS 10.9.

- 2018-09-27 (bug #6237)
  The Ant target "clean" for the Java example programs did not work as expected
  on Windows.

- 2018-09-27 (bug #6244)
  Fixed a problem with decompression of Flate- and LZW-compressed streams
  having a /Predictor value of 10 or 11.

- 2018-09-21 (bug #6232)
  No longer rely on name trees being sorted in pCOS. This makes pCOS more
  tolerant for incorrect PDF input, as the PDF Reference actually requires name
  tree entries to be sorted, and improves compatibility with Adobe Acrobat.

===================================
PDFlib 9.1.2p6 (September 12, 2018)
===================================

- 2018-09-13 (bug #6218)
  Textflow option "restore" only reset the options used in the most recent
  textflow option list, instead of resetting all options that were applied
  since the corresponding use of the "save" option.

- 2018-09-12 (bug #6217)
  Redundant specifications of the "opacity" property in SVG resulted in the
  creation of an unnecessary graphics state parameter dictionary in the PDF
  output.

- 2018-09-06 (bug #6225)
  Eliminated many Java 10 warnings when generating Javadoc HTML documentation.
  Many @param warnings nevertheless remain due to the current binding
  generator framework.

- 2018-08-24 (bug #6214)
  PDF_open_pdi_callback() did not work correctly with large files >2GB
  on Windows and z/OS. Fixing this required a small change in the interface.
  
- 2018-08-14 (bug #6201)
  PDFlib calculated an incorrect bounding box for textflows that contained
  a wrapbox, resulting in a wrong return value when calling PDF_info_textflow()
  with keyword "textheight".
  
- 2018-08-03 (bug #6205)
  PDF_info_matchbox() could return a wrong value for keyword "count" if a
  textflow containing matchboxes was used inside a table. This problem was
  introduced in PDFlib 9.1.2p4.
  
- 2018-07-27 (bug #6199)
  Fixed a crash in PDF_fill_graphicsblock() that occurred when -1 was passed
  for parameter "contents" and when there was no "defaultgraphics" property set
  in the block.
  

==============================
PDFlib 9.1.2p5 (July 25, 2018)
==============================

- 2018-07-25 (bug #6185)
  Fixed parsing of fragmented XML text in the XMP parser.
  
- 2018-07-23 (feature #2366)
  Removed the REALbasic/Xojo binding.

- 2018-07-05 (feature #1288)
  Migrated the Objective-C binding and iOS build from deprecated garbage
  collection to Automatic Reference Counting.

- 2018-06-28 (feature #2322, feature #2370)
  Added support for Perl 5.28.


==============================
PDFlib 9.1.2p4 (June 25, 2018)
==============================

- 2018-06-27 (bug #6184)
  Fixed an invalid memory read beyond the end of a buffer in the XMP parser.

- 2018-06-25 (bug #6175)
  With option "optimize=true" for PDF_begin_document() PDFlib created
  PDF output with an old-style cross-reference table that limited the size
  of the optimized PDF output file to approx. 9.3 GB. This restriction is 
  removed, and PDFlib can now create optimized PDF output files with cross-
  reference streams that exceed 9.3 GB in size.
  
- 2018-06-25 (bug #6182)
  PDFlib incorrectly rejected raw images with a size greater than two GB
  with the error message "Size (... bytes) of raw image file '...' doesn't
  match specified options".
  
- 2018-06-25 (bug #6176)
  PDFlib incorrectly stopped processing of an SVG file with the error message
  "Floating point number 1000000000000000000.000000 too large for PDF" if
  a <text> element contained a <textPath> element as its first child and if
  the <textPath> element was followed by further text within the <text>
  element.
  
- 2018-06-18 (bug #6172)
  When a property was specified twice via a PDF_set_info() and in an
  input XMP file in the "http://ns.adobe.com/pdfx/1.3/" namespace, the
  property was incorrectly written twice into the output XMP.

- 2018-06-18 (bug #6169)
  Zero-width matchboxes were unexpectedly dropped from textflows.

- 2018-06-18 (feature #2359)
  Created a new build configuration for PDFlib Mini Edition (ME) with
  support for security (encryption).

- 2018-06-04 (feature #2358)
  Implemented the quoting mechanism specified in XMP for custom document
  info containing characters which are not allowed in XML names. This way
  the current naming restriction on custom keys for PDF_set_info() could
  be lifted.

- 2018-05-30 (bug #6165)
  Fixed build errors that occurred when compiling PDFlib source code packages
  with a C89 compiler on HP Itanium.
  
- 2018-05-24 (bug #6152)
  PDFlib created an invalid stream length for the document's XMP Metadata
  stream under the following conditions:
  - The output is AES-encrypted.
  - Option "optimize=true" is specified for PDF_begin_document().
  - Option "autoxmp=true" is specified for PDF_begin_document() or
    PDF_end_document().
    
- 2018-05-24 (bug #6155)
  A crash occurred when importing a PNG file containing an alpha channel
  while creating PDF/VT output.

- 2018-05-22 (bug #6155)
  PDFlib incorrectly allowed the creation of associated files without
  specifying the "relationship" option for PDF 2.0 output. Now option
  "relationship" is optional for PDF/A-2/3 and PDF 2.0 output. If the
  "relationship" option is not specified, PDFlib emits "Unspecified" for
  the relationship of an associated file.
  
- 2018-05-17 (bug #6151)
  A crash occurred if an SVG file was loaded with option "templateoptions"
  and if PDF_info_graphics() was invoked with the keyword "fittingpossible"
  after the graphics had been placed with PDF_fit_graphics().

=============================
PDFlib 9.1.2p3 (May 07, 2018)
=============================

- 2018-05-07 (bug #6146)
  The warning message 2568 "Conditions for option 'passthrough=true' are
  not fulfilled" was transformed into a logging output for logging class
  "text".
  
- 2018-05-07 (bug #6136)
  Updated compiler requirements in readme-source.txt.
  
- 2018-05-07 (bug #6141)
  For TrueType and OpenType fonts which contain both glyphs with a
  Unicode-PUA assignment and glyphs without any Unicode assignment (e.g. 
  Arial Unicode MS) wrong glyphs were displayed.

- 2018-05-03 (bug #6144)
  On z/OS a crash occurred through heap corruption if option
  "filenamehandling" was set to "honorlang" and if one of the environment
  variables "LANG", "LC_ALL" or "LC_CTYPE" contained an encoding
  specification that caused a filename conversion with iconv, e.g.
  "LC_ALL=en_US.IBM-1047".
  
- 2018-05-03 (bug #6142)
  PDFlib incorrectly rendered the contents of <desc> elements in imported
  SVG files.
  
- 2018-05-03 (bug #6139)
  Some modules were missing from the Borland/Embarcadero 32-bit and 64-bit
  libraries, causing error messages about missing symbols when trying to link
  against them.

- 2018-05-03 (bug #6134)
  PDFlib incorrectly dropped tags from imported tagged table cells without
  any content, causing unevenly structured tables in the output document.
  Empty tags in table cells are now kept during PDF import, while empty
  tags outside of tables are still dropped.
  
- 2018-04-17 (feature #2338)
  Calculate the bounding box for SVG graphics without absolute size
  information and improve the fitting algorithm for standalone SVG.

- 2018-04-12 (bug #6113)
  Incorrect CSS in imported SVG could trigger the unexpected error message
  "load_font: Required option 'fontname' is missing" and a memory leak.
  
- 2018-04-12 (bug #6120)
  Fixed a crash in SVG import that occurred when the keyword "inherit" was
  present in a font property that was applied to the top-level <svg> element.
  
- 2018-04-12 (bug #6125)
  Fixed a crash that occured when specifying "autoxmp=true" for
  PDF_begin_document() while creating PDF/X-1a:2001 output.
  
- 2018-04-11 (bug #6124)
  SSE2 extensions in source builds are now disabled by default.
  
- 2018-04-04 (bug #6116)
  Invalid CSS in SVG could cause a memory leak.
  
- 2018-04-04 (bug #6117)
  When a graphical element in SVG referenced a <clipPath> element with a
  "transform" attribute, the clip path's transformation was incorrectly
  applied to the graphical element.

- 2018-03-28 (bug #6108)
  Invalid CSS in an imported SVG file could cause an endless loop.
  
- 2018-03-28 (bug #6106)
  Fixed a problem in the SVG CSS parser that could cause invalid memory
  reads and incorrect font sizes for SVG text.
  
- 2018-03-28 (bug #6103)
  Font properties defined in internal or external CSS stylesheets were
  incorrectly applied to all <text> elements in an imported SVG file.

===============================
PDFlib 9.1.2p2 (March 22, 2018)
===============================

- 2018-03-21 (feature #2335)
  Implemented the options "forcesrgb", "honoriccprofile", and
  "iccprofilegray/iccprofilergb/iccprofilecmyk" of PDF_load_graphics() for
  improved ICC profile control for SVG graphics. PDFlib now also ignores
  a CMYK profile in SVG if it is identical to the PDF/X-4/5 output intent
  to avoid the respective error.

- 2018-03-22 (bug #6094)
  Placing an image containing a clipping path as a child of the
  <Document> element with tagged PDF output resulted in the error message
  "Element type 'Document' cannot contain direct content, but only other
  structure elements'".
  
- 2018-03-22 (bug #6085)
  Fixed several scenarios where PDFlib incorrectly allowed using handles
  of templates that were not yet finished with PDF_end_template_ext().
  Now the error message 'Template handle ... must not be used before
  PDF_end_template_ext() was called for the corresponding template' is
  emitted in these situations.
  
- 2018-03-22 (bug #6093)
  Querying the resolution for an image mask of an image retrieved via
  PDF_info_image(..., "imagemask", ...) with the 'resx' and 'resy' keywords
  of PDF_info_image() always resulted in a resolution of 72 dpi. Now the same
  'resx' and 'resy' values as for the original image are returned for the
  image mask.
  
- 2018-03-21 (bug #6096)
  Closing a template handle with PDF_close_image() that was used with
  the 'softmask' suboption 'template' of PDF_create_gstate() caused an
  exception 'Illegal array index ... in function pdc__hvtr_at' in
  PDF_end_document().
  
- 2018-03-21 (bug #6101)
  Option "movieposter" for PDF_create_annotation() now accepts an image
  handle in addition to the keywords "auto" and "none". This allows to
  assign an image as a poster to an annotation of type "Movie".
  
- 2018-03-16 (bug #6099)
  Fixed the misleading warning that pointed out why a template could
  not be marked as an Encapsulated XObject in PDF/VT mode. Since the
  imlementation of feature #2242 in PDFlib 9.1.1 the suboption 'colorspace'
  of option 'transparencygroup' is required for PDF_begin_template_ext()
  to get an Encapsulated XObject.
  
- 2018-03-15 (feature #2333)
  Added the keyword "pathlength" to PDF_info_path().

- 2018-03-15 (bug #6092)
  If the 'matchbox' suboption 'clipping' was specified with the default
  values '{0 0 100% 100%}' or with '{0 0 <width> <height>}' where <width> and
  <height> are the values of the object width and height, PDFlib did not
  create a clipping rectangle.
  
- 2018-03-09 (feature #2334)
  Ignore a CMYK ICC profile in an image or SVG graphics if it is identical to
  the PDF/X-4/5  output intent profile. This avoids an error message for
  identical profiles without affecting the image colors.

- 2018-03-08 (bug #6086)
  The SVG CSS 'font' property was evaluated incorrectly if the
  sub-properties 'font-style', 'font-variant' or 'font-weight' appeared in
  an unexpected order. 
  
- 2018-03-08 (bug #6078)
  PDFlib did not evaluate the SVG <switch> element correctly if the
  'systemLanguage' attribute was not present for a child element.
   
- 2018-03-01 (bug #6077)
  When using options 'fitmethod=clip' with PDF_fit_graphics() when no
  fitbox is available a wrong clipping was applied.
  
- 2018-03-01 (bug #6073)
  The PDF output for an imported SVG file that only used ICCBased CMYK colors
  through colors defined with the SVG Color Extension contained an unnecessary
  initialization to sRGB black at the beginning of the content stream.

- 2018-03-01 (bug #6076)
  PDFlib crashed when importing an SVG file that contained a 'font' property
  within a <style> element of type 'text/css'.
  
- 2018-02-28 (bug #6074)
  PDFlib incorrectly applied CSS properties from unsupported interactive
  CSS pseudo classes for imported SVG.
   
==================================
PDFlib 9.1.2p1 (February 20, 2018)
==================================

- 2018-02-28 (bug #6072)
  Improved the calculation of the path length using option "pathlength"
  of PDF_info_textline() for text on a path created with PDF_fit_textline().
  This changelog entry was accidentally omitted for the actual release of
  PDFlib 9.1.2p1.
  
- 2018-02-22 (bug #6071)
  PDFlib crashed when passing an empty string to the "tagname" parameter
  of PDF_begin_item().

- 2018-02-20 (bug #6054)
  The PHP 7.2 binding for Windows could not be used with the official PHP
  packages because it was compiled with a wrong compiler version.
  
- 2018-02-19 (bug #6061)
  For TrueType and OpenType fonts where PDFlib assigned Unicode PUA values
  to glyhps without an assigned Unicode value it was not possible to
  enumerate all Unicode values for glyphs with PUA values via PDF_info_font().
  
- 2018-02-19 (bug #6066)
  When using option "cascadedflate" with PDF_load_image() for loading a
  JPEG 2000 image invalid PDF output was produced. PDFlib now ignores option
  "cascadedflate" for JPEG 2000 images as documented.
  
- 2018-02-16 (bug #6065)
  Specifying option "K" with PDF_load_image() for loading a CCITT-compressed
  TIFF image could result in invalid PDF output. Option "K" is only relevant
  for raw CCITT images and must be ignored for other image types.
  
- 2018-02-16 (bug #6064)
  PDF_create_annotation() incorrectly rejected the creation of a Link
  annotation as a direct child of a 'Document' element with the error
  message "Element type 'Document' not allowed as parent for annotation
  'Link'" for tagged PDF output.

- 2018-02-16 (bug #6062)
  After the fix for bug #6041 PDFlib missed some optimization opportunities
  that could lead to significantly larger PDF output when optimizing PDF
  output with redundant PDF objects by using option "optimize=true" with
  PDF_begin_document(). Now optimization of redundant PDF objects is again
  as effective as before the fix for bug #6041.
  
- 2018-02-13 (bug #6057)
  PDFlib incorrectly allowed the specification of the undocumented option
  "pdfx=PDF/X-2:2003" for PDF_begin_document(). This option is now
  rejected.
  
- 2018-02-13 (bug #6058)
  PDF_load_iccprofile() incorrectly accepted non-n-colorant ICC profiles for
  PDF/X-5n output, causing a failed assertion during subsequent processing.

- 2018-02-13 (bug #6059)
  Using a CID font that contains the same glyph multiple times associated
  with different unicode values could result in invalid PDF output.
  
- 2018-02-13 (bug #6055)
  Importing an SVG file with a non-black background color resulted in
  incorrect output if the first element to be rendered was to be drawn
  in black.

================================
PDFlib 9.1.2 (February 06, 2018)
================================

- 2018-02-06 (bug #6052)
  For rotated Link annotations the clickable region was the non-rotated
  bounding box of the Link annotation. Now the clickable region is the
  rotated rectangle of the Link annotation itself.
  
- 2018-02-06 (bug #6050)
  On IBM iSeries PDFlib could crash when importing SVG files containing
  the SVG <textPath> element.
  
- 2018-02-06 (bug #6051)
  Ignore bogus aspect ratio values larger than 10 for JPEG and TIFF images.
  
- 2018-02-02 (bug #5747)
  Fixed a crash in the Python 3.x wrapper on Windows 10 64-bit.

- 2018-02-02 (bug #6049)
  Improved handling of damaged JPEG files.

- 2018-01-31 (feature #2325)
  Implemented the new text filter option "passthrough" which can be used
  to accelerate the simple text output functions (PDF_show_xy() etc.) under
  certain conditions and by sacrificing some Unicode-related features. Fast
  text output is enabled by default since all conditions can be checked before
  emitting any text.

- 2018-01-30 (feature #2323)
  Identify several non-standard JPEG flavors which are not supported in PDF,
  including SmartScale, reversible RGB color transform, and big gamut YCC
  (JFIF 2). The similar format JPEG-LS is now identified as such and rejected,
  instead of confusingly reporting it as damaged JPEG.
  
- 2018-01-30 (bug #6045)
  PDF_info_image() incorrectly swapped width and height values for JPEG and
  TIFF images if the image contains orientation information and if the
  "orientation" field has a value greater or equal than 5.
  
- 2018-01-30 (bug #5301)
  On IBM iSeries PDFlib could fail with unexpected error messages if the
  processing in PDFlib involved very deep nesting of internal exception
  contexts.

- 2018-01-25 (bug #6043)
  Several REALbasic example programs were damaged and could not be opened
  with the Xojo IDE.
  
- 2018-01-25 (bug #6044)
  A call to PDF_load_image() incorrectly failed with message "ICC profile
  for image file '...' doesn't match image data" when loading an indexed PNG
  file while trying to assign a RGB ICC profile with option "iccprofile".
  
- 2018-01-24 (bug #6028)
  PDFlib could create wrong graphics output when PDF_add_path_point() was
  used with option "svgpath" and without any graphics appearance option.
  
- 2018-01-24 (bug #6041)
  The algorithm that computes hash values for PDF objects could incorrectly
  compute the same hash value for two different PDF objects when both PDF
  objects referenced the same set of indirect objects, but with different
  permutations, and when the PDF objects were otherwise identical.
  
  The incorrect hash value computation could have two effects:
  
  - When generating optimized output PDFlib could incorrectly replace one
    PDF object with a different one.
    
  - For PDF/VT output PDFlib generates PDF/VT Encapsulated XObjects for PDF
    pages imported with PDI, which get a unique GTS_XID identifier derived
    from the hash value of the PDF page. PDFlib could generate the same
    GTS_XID value for two different imported PDF pages.
  
- 2018-01-23 (feature #2319)
  Updated the internal copy of libpng to version 1.6.34.

- 2018-01-22 (feature #2318)
  Updated the internal copy of Expat to version 2.2.5.

- 2018-01-22 (feature #2293)
  Modified the following starter samples to prepare error handling for
  ICC loading (in case the code is modified to use a profile other than ICC)
  and to clarify ICC profile vs. output intent in error messages:
  starter_color, starter_pdfa1b, starter_pdfa2b, starter_pdfx3, starter_pdfx4
  starter_pdfvt1

- 2018-01-22 (bug #6032)
  Updated the internal copy of libjpeg to version 9c.

- 2018-01-18 (feature #2303)
  Implemented support for the SVG text property "glyph-orientation-vertical"
  for rotating glyphs in vertical text output mode.

- 2018-01-18 (feature #2310)
  Updated the internal copy of libtiff to version 4.0.9.
  
- 2018-01-18 (feature #2320)
  Improved error messages of PDF_fit_textflow() by including some part of
  the relevant text at the location in the Textflow where the error occurred.

- 2018-01-15 (feature #2311)
  Removed the following starter samples from the packages:
  starter_pdfx5g, starter_pdfvt2, starter_type3font, starter_3d,
  starter_geospatial

- 2018-01-11 (bug #6031)
  Changed the way in which tooltips are written for radio buttons in PDFU/UA
  mode in order to make the output conform to ISO 32000-1 and at the same
  time fix a PDFlib Accessibility Checker 3 error message.
  
- 2018-01-11 (bug #6033)
  A source build of the PDFlib Java binding with Java 9 failed because the
  javac command line option "-source 1.4" is no longer supported by Java 9.
  Now the minimum required Java version was raised to 1.6.
  
- 2018-01-11 (bug #6034)
  Added option "acceptdynamicxfa" to PDF_open_pdi_document() to make
  access to dynamic XFA forms with pCOS functions possible. Previously 
  dynamic XFA forms were rejected unconditionally with the message "Dynamic
  XFA form '<input file>' cannot be processed as PDF document".
  
- 2018-01-09 (bug #6030)
  PDF_pcos_get_string() incorrectly failed with the error message "Invalid
  UTF-16 string" if the PDF string to be retrieved was UTF-16 encoded and
  contained UTF-16 surrogate values.
  
- 2018-01-09 (bug #6036)
  Passing an invalid option to PDF_create_textflow() caused a memory leak.
  
- 2018-01-08 (bug #6035)
  PDFlib crashed in PDF/UA mode if a "L" element was created with a
  "ListNumbering" option with a value different from "None", and if "LI"
  elements without "Lbl" elements were nested inside the "L" element.

- 2017-12-22 (feature #2283)
  Updated the internal copy of zlib to version 1.2.11.

- 2017-12-20 (feature #2296)
  Switched the build for the .NET DLL from Visual Studio 2010 runtime
  libraries to Visual Studio 2015.
  
- 2017-12-14 (bug #6029)
  Fixed an unwanted side-effect of the fix for bug #5869 from PDFlib 9.1.0p5
  that the "avoidbreak" option did not prevent a line break as expected if
  an inline option was present in the text.
  
- 2017-12-12 (bug #6026)
  PDFlib misplaced an annotation on the page, if the visual appearance for
  the annotation was created in a topdown coordinate system with a template
  passed via option "template" to PDF_create_annotation().
  
- 2017-12-08 (bug #6027)
  Creation of attachments incorrectly required option "mimetype" with
  PDF 2.0 output

- 2017-12-06 (feature #2307)
  Consolidated the PDF 1.7 tag nesting rules with the PDF 2.0 rules for
  consistency. This involved some incompatible changes (stricter rules)
  for rarely used parent/child combinations of tags; see compatibility.txt
  for details.

- 2017-12-05 (bug #6022)
  PDFlib incorrectly assumed a CMYK standard output intent for a PDF/A
  output document when performing the PDF_process_pdi() "copyoutputintent"
  action for a PDF/A input document without output intent. The documented
  restriction that standard output intents without embedded ICC profile
  cannot be copied with the PDF_process_pdi() "copyoutputintent" action did
  not trigger a meaningful error message.
  
- 2017-12-05 (bug #6004)
  Documented how to embed PDFlib as a Framework into macOS and iOS apps.
  

==================================
PDFlib 9.1.1p5 (November 23, 2017)
==================================

- 2017-11-23 (bug #6013)
  PDFlib PDI does not import tags without associated marked content. When
  tags from an input document are dropped because of lack of associated
  marked content now a warning is emitted.
  
- 2017-11-21 (bug #5998)
  Invalid XMP or non-XMP metadata in image and SVG files previously caused
  an exception with "metadata={keepxmp=true}". Now the unusable metadata is
  dropped and a warning is emitted.
  
- 2017-11-20 (bug #6011)
  PDFlib could assign incorrect duplicate PUA values to glyph ids if a
  font itself assigned Unicode PUA values to glyph ids in a certain Unicode
  PUA range. 

- 2017-11-20 (bug #6014)
  PDFlib incorrectly allowed to nest the tags "LI" and "LBody" inside
  the tags "TD" and "TH". The tag nestings "TD->LI", "TD->LBody", "TH->LI"
  and "TH->LBody" are now rejected. 

- 2017-11-20 (bug #6012)
  The Visual Studio 32-bit solution file for the PDFlib C samples contained a
  reference to a non-existing project "starter_pdfvt". The project was
  renamed to "starter_pdfvt1".
   
- 2017-11-14 (bug #6001)
  The macOS PDFlib Framework project file contained a typo that prevented a
  successful build with XCode 9.x.


==================================
PDFlib 9.1.1p4 (November 07, 2017)
==================================

- 2017-11-07 (bug #5999)
  Improved the error message for invalid XMP where the <rdf:RDF> element
  contains child elements other than <rdf:Description>.
  
- 2017-10-16 (bug #5990)
  Using option "ListNumbering=Decimal" with tag "L" could cause the
  unexpected error message "Option 'ListAttribute' of element type 'L'
  must be 'None' if the list doesn't contain any list items with 'Lbl'
  element" when calling PDF_end_item().

- 2017-10-16 (bug #5992)
  The PDFlib Java samples all used "System.err.println(e.getMessage());"
  in the catch clause for non-PDFlib exceptions. This resulted in only the
  "detail message string" of the exception without any context to be printed.
  Now all Java samples use "System.err.println(e);", which prints a short
  description of the exception that includes the class name of the exception
  and the detail message string.
  
- 2017-10-16 (bug #5991)
  Reject invalid JPEG-compressed data that could be used to trigger a
  data leak in the original libjpeg version 6b. PDFlib was actually not
  affected by the data leak because in all PDFlib products all memory
  dynamically allocated by libjpeg is explicitly initialized to zero.

- 2017-10-10 (bug #5927)
  For damaged PDF documents inconsistent result could be produced when
  repeatedly accessing page objects affected by the damage, e.g. via the
  pCOS API. 

- 2017-10-05 (bug #5974)
  Fixed a problem with the optimized PDI page import (feature #1872) for
  PDF/VT output, which could cause XObjects created for imported pages not
  to be marked as encapsulated.
  
- 2017-10-02 (bug #5964)
  Placing a Textflow within a template in a Tagged PDF document caused the
  unexpected error message "Invalid end of marked content (no matching
  begin)".

- 2017-09-26 (bug #5964)
  PDFlib did not enforce the Tagged PDF requirement that if a "Caption" tag
  is present as a child of a "Table" structure element it shall be either the
  first or last child of the "Table" element.


===================================
PDFlib 9.1.1p3 (September 26, 2017)
===================================
  
- 2017-09-26 (bug #5976)
  Because of a bug introduced in PDFlib 9.1.1p1 PDFlib unconditionally tried
  to create a log file "hello.log" in the current working directory when
  PDF_info_graphics() was called with the "fittingpossible" keyword. This
  could cause an exception if the process had no right to create the file in
  the current working directory.
  
- 2017-09-26 (bug #5978)
  Placing a table within a template in a Tagged PDF document caused the
  unexpected error message "Invalid end of marked content (no matching
  begin)".
  
- 2017-09-22 (bug #5972)
  PDFlib crashed when using an OpenType font with a CFF table, if the
  "endchar" operator was used within the character data of a global
  subroutine.
  
- 2017-09-22 (bug #5962)
  Subsetting is enforced for SID fonts in vertical mode to work around a
  problem that caused wrong glyphs to be displayed in vertical mode.
  
- 2017-09-11 (feature #2282)
  Identify variable OpenType fonts (also called font variations) with
  PostScript outlines in a "CFF2" table so that they can be rejected with
  an appropriate message.

- 2017-09-11 (bug #5963)
  Invalid PDF output was generated if the font handle supplied to option
  "font" of PDF_create_field() was retrieved from PDF_load_font() in object
  scope.


===================================
PDFlib 9.1.1p2 (September 04, 2017)
===================================

- 2017-09-04 (bug #5959)
  Clarified error messages for situations where option list problems in
  PDF_load_graphics() (with "templateoptions") were only reported later
  in PDF_fit_graphics().

- 2017-09-04 (bug #5956)
  PNG images with a palette and a transparency chunk could result in
  "uninitialized read" errors for a certain combination of palette size and
  tRNS size.

- 2017-09-04 (bug #5932)
  The Ruby 2.4 binding on macOS contained an unwanted dependency to an
  external library.
  
- 2017-09-04 (bug #5952)
  The new optimized subsetting for OpenType fonts with TrueType outlines
  (feature #2197) could cause PostScript printing problems for encoding=unicode.

- 2017-09-04 (bug #5953)
  Loading a font with the "simplefont" option could result in a crash
  if a TrueType font without any glyph name was used with an encoding
  different from winansi.


================================
PDFlib 9.1.1p1 (August 16, 2017)
================================

- 2017-08-16 (bug #5944)
  Eliminated unnecessary search for default font for SVG files that don't
  contain any text.
  
- 2017-08-09 (bug #5940)
  Using a handle returned by PDF_load_graphics() in document scope in another
  document scope caused a crash. It is now only allowed to use a handle
  returned by PDF_load_graphics() in multiple document scopes if the
  PDF_load_graphics() call is made in object scope.
  
- 2017-08-09 (bug #5921)
  In some situations the writing of a XObject for a SVG file loaded with
  option "templateoptions" was deferred until PDF_end_document() was called.
  Because in this situation transparency was not detected in the SVG data,
  this could prevent the automatic creation of a transparency group for the
  generated page and could cause invalid PDF/A-2/3 output.
  
- 2017-08-09 (bug #5929)
  When the PDF_load_graphics() option "templateoptions" was used with
  certain sub-options when loading a SVG file, a XObject for the SVG
  data was created in the output document even if the graphics handle
  returned by PDF_load_graphics() was never used with PDF_fit_graphics().
  The scope of PDF_load_graphics() has been relaxed to "any" (without any
  restrictions).
  
- 2017-08-08 (bug #5935)
  The host font feature was accidentally disabled in the source code packages
  since PDFlib 9.1.0p3.

- 2017-08-07 (bug #5931)
  If PDF_info_graphics() was called with the "fittingpossible" keyword
  after a gstate had been created, this caused PDF_info_graphics() to fail
  with the error message "Option 'gstate' has bad gstate handle".
  
- 2017-08-07 (bug #5930)
  Improved the performance of SVG processing.
  
- 2017-07-28 (bug #5928)
  Added a workaround for a compiler bug on Solaris Intel that could cause
  a crash when creating gradients between different spot colors with
  PDF_shading().


==============================
PDFlib 9.1.1 (July 26, 2017)
==============================

- 2017-07-26 (bug #5924)
  Importing pages from documents with layers into PDF/X output documents
  could result in invalid PDF/X output if different values for the
  "uselayers" option were used with PDF_open_pdi_document().
   
- 2017-07-26 (bug #5926)
  Enabled the use of C library functions for the zlib Z_SOLO build. This
  improves the performance for setting up compressed streams.
  
- 2017-07-24 (bug #5925)
  Calling PDF_process_pdi() with "action=copyoutputintent" in PDF/X-5n could
  result in a crash later when grayscale or CMYK colors were used since the
  colorant list incorrectly was not available.

- 2017-07-24 (feature #2242, feature #2267, feature #2269)
  Improved PDF/VT encapsulation of Form XObjects. The GTS_Encapsulated flag is
  now assigned to almost all Form XObjects created for imported PDF pages and
  SVG graphics with the "templateoptions" option; a transparency group is
  attached to the Form XObject only if required. This new strategy facilitates
  in-RIP caching of Form XObjects which can result in accelerated ripping.
  Before the change transparent templates and SVG graphics could incorrectly be
  encapsulated if users provided a transparency group without the "colorspace"
  suboption.

- 2017-07-24 (bug #5792)
  Improved the implementation of option "transparencygroup=auto" of
  PDF_open_pdi_page() to avoid unexpected color shifts for imported pages in
  certain scenarios. Imported or automatically created transparency groups
  for imported pages are now always isolated. In PDF/A-2/3 and PDF/X-4/5
  mode "transparencygroup=auto" is enforced to prevent invalid PDF/A or
  PDF/X output.
  
- 2017-07-24 (bug #5897)
  Eliminated unnecessary search for transparency in imported pages for
  PDF/A output, and improved the performance of the search for transparency
  in imported pages in general.
  
- 2017-07-24 (bug #5916)
  OpenType features or "shaping=true" could result in unnecessary ActualText
  attributes for the generated text even if the ActualText wasn't different
  from the text string.
  
- 2017-07-24 (bug #5920)
  Using option "templateoptions" with PDF_load_graphics() could cause a
  crash with PDF/VT output.
  
- 2017-07-24 (bug #5923)
  Option "strokecolor=none" of PDF_fit_table() did not actually suppress
  the line drawing of the table cell border.
  
- 2017-07-13 (bug #5914)
  Relaxed stricter parsing of PostScript AFM files that was implemented
  with PDFlib 8. This allows processing of broken AFM files again that were
  accepted in PDFlib 7 and earlier versions.
  
- 2017-07-11 (bug #5908)
  Added 64-bit FreeBSD support for Ruby 2.3 and Ruby 2.4.

- 2017-07-11 (bug #5900)
  OpenType fonts with CFF tables trigger an SID-to-CID conversion when loaded
  with option "vertical=true". In this situation invalid Notice, Copyright and
  Weight strings were generated on EBCDIC platforms.
  
- 2017-07-06 (feature #2215)
  Added build support for Visual Studio 2017.

- 2017-07-04 (bug #5903)
  DeviceGray was not accepted as the page transparency group colorspace in
  PDF/A-2/3 mode with a RGB output intent.


==============================
PDFlib 9.1.0p5 (June 29, 2017)
==============================

- 2017-06-29 (bug #5899)
  Fixed a memory leak in PDF_load_font() that was introduced in
  PDFlib 9.1.0p4.
  
- 2017-06-28 (bug #5898)
  When a layer handle was used on multiple pages without calling
  PDF_end_layer() on each page, the layer did only appear on the first page. 

- 2017-06-28 (bug #5895)
  Glyphs from fallback fonts were not shaped, although layout features were
  enabled for the base font.
  
- 2017-06-28 (bug #5893)
  When multiple fonts were used within vertical textline text because of
  the application of fallback fonts, the text box calculation was incorrect,
  which caused incorrectly positioned glyphs and zero-height matchboxes.
  
- 2017-06-23 (bug #5867, bug #5864)
  It was not possible to build ICU from source on IBM i5 systems.

- 2017-06-21 (bug #5891)
  PDI unnecessarily rejected the import of a page that has an isolated
  transparency group without a color space entry, with the error message
  "Transparency group from imported page cannot be used: Incorrect data type
  'null' for color space" being produced.
  
- 2017-06-21 (bug #5888)
  Fixed a performance regression that was introduced in PDFlib 9. Improved
  the performance of writing PDF string objects.
  
- 2017-06-21 (bug #5885)
  With the PHP 7 PDFlib wrapper a problem was introduced that when extending
  the PDFlib class it was not possible to access any members of the extended
  class.
  
- 2017-06-20 (bug #5890)
  It is allowed to call PDF_create_annotation() for a non-existing matchbox,
  in which case the function silently returns without creating an annotation.
  When abbreviated tagging with the "tag" option was used with
  PDF_create_annotation() in this scenario, a tag was created nevertheless.
  
- 2017-06-19 (bug #5899)
  In non-Unicode-capable languages several API functions receive a string
  and the corresponding length as parameters. If 0 was passed for the length
  of a null-terminated string and if the actual length of the string was
  2 or 3, it could sporadically happen that an error message about the
  string having length 0 was produced.

- 2017-06-18 (feature #2126)
  Improved import of Tagged PDF pages for situations where a structure element
  spans more than one page and all affected pages are imported. Previously
  PDFlib duplicated the top-level tag if it was imported on more than one
  page. This situation is now detected and only a single parent tag for the
  items on both imported pages is created. A precondition is that no new
  grouping tag has been set for any of the imported pages.

- 2017-06-14 (bug #5887)
  PDFlib did not correctly initialize the fill and stroke color spaces for an
  imported PDF/A or PDF/X page with a CMYK output intent.
  This affected only rare pages which rely on the initial DeviceGray 
  color space. If the imported page used the SC or sc operator for setting
  the color this could even lead to a syntax error for the generated document.
  The initialization for PDF/A documents with RGB output intents now uses
  DeviceRGB instead of Lab. Finally, the initialization for PDF/X-5n uses
  DeviceGray if the Colorants in the output intent ICC profile include Black.

- 2017-06-07 (feature #2257)
  Implemented the "animation" option for PDF_load_3ddata() which can be used
  to set views for 3D RichMedia annotations.

- 2017-06-07 (bug #5880)
  Improved the build process for AIX 6 and 7 and enhanced the code for
  dynamically loading PDFlib in applications to also support AIX.
  For source builds support was added to build PDFlib on AIX 6 and AIX 7.

- 2017-06-01 (bug #5866)
  Enhanced the tools and documentation for building plain PDFlib (without
  PDI) from source code on i5 systems. 

- 2017-05-31 (feature #1719)
  PDF_open_pdi_page() now removes the /BBox attribute from imported structure
  elements, as well as /Width and /Height since these values may no longer be
  correct if the user applies a transformation in PDF_fit_pdi_page().

- 2017-05-31 (feature #2187)
  PDF_shading() supports gradients between different spot colors by
  constructing a suitable DeviceN color space for the shading.

- 2017-05-24 (bug #5869)
  Textflow: if only space characters were present between inline option lists
  these were not treated as line-breaking opportunity.

- 2017-05-24 (bug #5816)
  The XMP engine incorrectly accepted broken XMP where rdf:Alt was missing
  in dc:description. This input problem is now automatically fixed unless
  strict XMP mode is enabled.

- 2017-05-23 (bug #5870)
  errno=0 after fopen() triggered an exception which is not appropriate
  on systems with a plain C runtime, but no POSIX support.

- 2017-04-24 (bug #5856)
  PDF_begin_template_ext() in PDF_VT mode now creates the /GTS_Encapsulated
  entry even in the absence of the "scope" option to facilitate in-RIP
  caching of Form XObjects without any user intervention. 

- 2017-04-20 (bug #5855)
  The rare and unreasonable use of the /RunLengthDecode filter for content
  streams was rejected by PDI although it can easily be processed.

- 2017-04-19 (bug #5851)
  The matchbox option "round" could create unexpected output if the specified
  value was too large. In order to create consistent output the value is
  now clamped to the minimum of the halves of the box's width and height. 

- 2017-04-19 (feature #2197)
  Optimized subsetting for OpenType fonts with TrueType outlines which
  significantly reduces the size of subsets, especially for fonts with
  a large number of unused glyphs.

- 2017-04-19 (bug #5849)
  SVG processing: the attribute display="none" was ignored for <tspan>
  elements. As a result, content could be displayed which actually should be
  suppressed. 

- 2017-04-12 (feature #2217)
  SVG processing: emit a warning for <switch> elements which don't contain
  any elements with a "systemLanguage" attribute that matches the "lang"
  setting provided by the environment or specified by the user. The language
  value "C" (which is common on many Linux/Unix systems) is mapped to "en"
  to avoid missing output.

- 2017-04-12 (feature #2218)
  Added the option "round" for PDF_fit_table() which creates rounded corners
  as table stroke and fill decoration.


===============================
PDFlib 9.1.0p4 (April 05, 2017)
===============================

- 2017-04-05 (feature #2235)
  Added the keyword "current" for the "matrix" suboption of the "transform"
  option of PDF_begin_pattern_ext(), PDF_begin_template_ext(),
  PDF_shading_pattern() and PDF_open_pdi_page(). This may be useful for
  creating a transformation which matches the current user coordinate system. 

- 2017-03-30 (bug #5778)
  Several improvements in CSS processing for SVG:
  - A trailing comma at the end of a selector list incorrectly implied the
    universal selector '*'.
  - The "!important" rule for attributes was not correctly parsed.
  - Skipping of C-style comments within CSS was not correctly implemented.

- 2017-03-28 (feature #2226)
  Added support for Ruby 2.4.

- 2017-03-27 (bug #5812)
  Implemented the new option "dpi" for PDF_load_graphics() which is used to
  determine the size of the "px" unit in CSS.

- 2017-03-21 (bug #5830)
  Clarified the required compiler flags and fixed a small bug in a preprocessor
  directive when using c89 and c99 of the Oracle Studio compiler.

- 2017-03-21 (bug #5828)
  Reject TrueType/OpenType fonts with an "sbit" table (i.e. Apple fonts with
  color bitmaps) since the glyph outlines are unusable in PDF.

- 2017-03-21 (bug #5822)
  PDF_shading() did not throw an exception of both the r0 and r1 options
  were missing for "type=radial".

- 2017-03-17 (feature #2223)
  Switched zlib to the Z_SOLO build which saves some resources and avoids
  undesirable include file dependencies.

- 2017-03-16 (bug #5823)
  Emit a more user-friendly message for TrueType/OpenType fonts which contain
  only color bitmaps (e.g. CBDT/CBLC), but no "glyf" table.


===============================
PDFlib 9.1.0p3 (March 10, 2017)
===============================

- 2017-03-10 (feature #2220)
  Added dedicated support for Renesas SHC compiler (PDFlib Mini Edition).

- 2017-03-10 (feature #2219)
  Implemented Windows build for PDFlib Mini Edition.


===============================
PDFlib 9.1.0p2 (March 02, 2017)
===============================

- 2017-03-01 (bug #5803)
  The attribute "systemLanguage" in SVG is compared case-insensitive now.

- 2017-02-28 (feature #2155/REOPENED)
  While Posix functionality could be disabled, a few unneeded Posix header
  files were still included in the PDFlib Mini Edition build.

- 2017-02-28 (bug #5793)
  PDF_info_textline(): implemented the new keyword "missingglyphs" which can
  be used to check whether the supplied text did completely fit on a path.

- 2017-02-28 (bug #5799)
  The examples for Android didn't work out of the box since the IpCOS
  interface was not included in the package.

- 2017-02-24 (bug #5796)
  Modify handling of "null" tokens when dictionary entries are queried with
  pCOS. The new behavior conforms to ISO 32000-1 and avoids unjustified
  error messages, e.g. when importing a PDF page with layers where "null"
  was encountered in a dictionary:
  "Illegal index -1 in path 'objects[-1]/Subtype' (must be >= 0)"

- 2017-02-23 (bug #5778)
  Improved hierarchy processing of SVG elements which is required for
  correctly handling ancestor, descendent, parent, child and sibling of an
  element for proper CSS processing.

- 2017-02-14 (bug #5789)
  PDF_fit_graphics(): fixed incorrect scaling when placing graphics with
  "fitmethod=nofit", "scale" with a value != 1 and "boxsize={w h}" with
  positive values of w and h.

- 2017-02-14 (bug #5757)
  SVG import: improved processing of a list of CSS class identifiers where
  previously an assertion was emitted.

- 2017-02-07 (bug #5784)
  PDF_info_matchbox() could crash when a NULL parameter (in C/C++) or
  empty String (in Java) was supplied for the "boxname" parameter.

- 2017-02-07 (bug #5779)
  PDF_fit_textline(): charspacing applied to text in vertical writing mode
  incorrectly modified the horizontal glyph position in addition to the
  vertical position. 

- 2017-01-31
  Made parsing of Photoshop resources (for clipping paths in JPEG or TIFF
  images) and validation of the PostScript transform function for DeviceN
  color spaces configurable for the PDFlib Mini Edition (ME).

- 2017-01-30 (bug #5758)
  XMP processing: if a node contains duplicated properties only the last
  instance is copied to the output in an attempt to correct non-conforming
  XMP input.

- 2017-01-30 (feature #2200)
  Included the source module of the Java wrapper in the JAR package to
  make parameter names and deprecation info available in Eclipse and other
  IDEs without further configuration.

- 2017-01-27 (feature #2198, feature #2196, feature #2203, feature #2199)
  Mark deprecated API functions in pdflib.h and language bindings so that
  GCC, Clang and Visual Studio (C/C++/.NET) emit warnings for deprecated calls.

- 2017-01-26 (bug #5775)
  Modified the Perl samples to eliminate warnings emitted with the Perl
  command-line option "-W".

- 2017-01-24 (bug #5770)
  SVG: when a property in a style attribute was repeated, the first value
  was used instead of the last one.

- 2017-01-23 (bug #5764)
  Improved the warnings emitted by PDF_info_font() when unsupported lookups
  for OpenType features were found in a font. Also, a clearer warning is
  emitted if requested feature definition was not found in the font.

- 2017-01-23 (bug #5769)
  The "deprecated" declaration was missing for a few API functions in the
  C++, PHP and .NET wrappers:
  PDF_get_value(), PDF_setmiterlimit(), PDF_open_mem(), PDF_xshow().
  
- 2017-01-20 (bug #5763)
  Avoid some incorrect warnings in the log file when setting the "license"
  or "licensefile" options.

- 2017-01-20 (bug #5756)
  Windows: avoid crash when a memory-mapped network file becomes unavailable.

- 2017-01-17 (bug #5755)
  Calling PDF_set_parameter() with "stringformat" incorrectly triggered
  an "unsupported" entry in the logging output.

- 2017-01-17 (feature #2194)
  Suppress all deprecated API functions in the PDFlib Mini Edition.

- 2017-01-09 (bug #5742)
  Warnings in the logging output for PDF_fill_textblock() in PHP contained
  a Textflow handle which was too small by 1.

- 2017-01-09 (feature #2168, bug #5740)
  SVG color extensions: always use the sRGB fallback color (without defining
  any new spot color) when the name of an unknown spot color is encountered.



=================================
PDFlib 9.1.0p1 (January 09, 2017)
=================================

- 2016-12-27 (feature #2190, feature #2191)
  Replaced the old ISOcoated.icc profile which is used as output intent in
  many samples with the newer ISOcoated_v2_eci.icc. Affected samples are
  starter_pdfx4, starter_pdfvt1, starter_pdfvt2, starter_pdfvt2s,
  starter_pdfx3, starter_pdfx5g.
  The starter_pdfa2b has been changed to use sRGB as output intent which is
  more practical for PDF/A output.

- 2016-12-27 (bug #5743)
  Building the PDFlib binding for PHP with the PECL package failed with
  "main/internal_functions.c:119:2: error: 'phpext_pdf_ptr' undeclared here"
  due to a recent change in the PHP wrapper. (This bug did not affect
  precompiled PDFlib binaries for PHP.)

- 2016-12-27 (bug #5744)
  Enhancements in the hellodl sample for dynamically loading PDFlib from C
  and C++ applications.

- 2016-12-27
  Added modified C samples and Makefile to the PDFlib ME package.


================================
PDFlib 9.1.0 (December 12, 2016)
================================

PDFlib 9.1 implements various new features related to color handling;
see PDFlib Tutorial for details.

- 2016-12-12 (feature #2159)
  Updated and enhanced the starter_color samples.

- 2016-12-12 (bug #5687)
  The options 'fillcolor' and 'spotcolor' of various functions incorrectly
  rejected ICC-based CMYK color specifications with the error
  "Option 'fillcolor' has too many values (> 5)".

- 2016-12-12 (bug #5736)
  PDF_begin_template_ext() didn't detect invalid client code where a template
  handle was used before its own definition was finished, e.g. the currently
  generated template was used in PDF_fit_image() during its own definition.

- 2016-12-08 (feature #2155)
  Allow the PDFlib Mini Edition to be built without use of any Posix functions.

- 2016-12-07 (bug #5733)
  Optimized code and documentation regarding loading fonts for use in form
  fields.
 
- 2016-12-07 (bug #5732)
  Multi-strip little-endian OJPEG TIFF images were not processed correctly on
  big-endian platforms.
  
- 2016-12-05 (bug #5727)
  PDF_set_option() didn't accept the "maxfilehandles" option; the use of
  PDF_get_option() with this option wasn't documented.

- 2016-12-05 (bug #5731)
  PDF_load_asset() didn't correctly check for compatibility=1.7ext3.


==================================
PDFlib 9.0.7p4 (November 30, 2016)
==================================

- 2016-11-30 (bug #5703)
  The .NET binding could not be built from source with Visual Studio 2015
  due to an incorrect linker option.

- 2016-11-30 (bug #5726)
  The test for invalid values of beta in PDF_skew_matrix() was incorrect.

- 2016-11-28 (bug #5717)
  XMP extension schema checking for PDF/A: custom value types were not
  honored if used in the definition of fields for another custom type.

- 2016-11-18 (bug #5713)
  PDF_create_textflow(): an error in the "matchbox" option could cause a
  memory leak.

- 2016-11-15 (bug #5710)
  Invalid PDF output could be created when the "reference" XObject option
  was used in page scope.

- 2016-11-11 (bug #5708)
  Spot colors created with PDF_makespotcolor() were written to the Resources
  dictionary even if they were not used on the respective page, pattern,
  template or glyph description.

- 2016-11-07 (bug #5700)
  Using "fakebold" at the beginning of a Textflow could incorrectly make
  subsequent text invisible.

- 2016-11-06 (bug #5701)
  The "optimize" or "linearize" options didn't handle non-ASCII characters
  in the user-supplied temp file name and the value of the "TMP" environment
  variable on Windows. 

- 2016-11-06 (bug #5698)
  Using save/restore in a Textflow could incorrectly change the tab alignment.

- 2016-11-06 (bug #5702)
  Text with artificial "fontstyle=italic" wass incorrectly positioned in
  Textflows.

- 2016-10-31 (bug #5608)
  Another kind of damaged TrueType font could cause a crash.

- 2016-10-31 (bug #5694)
  The graphics appearance option list "shading" did not take into account the
  current fill color if the "fillcolor" option was missing.

- 2016-10-31 (bug #5696)
  PDF_shading() didn't check whether the color values provided in the parameters
  c0, c1, c2, c3 were legal according to the selected colorspace. As a result,
  shadings could appear too short if invalid large color values were supplied.


=================================
PDFlib 9.0.7p3 (October 28, 2016)
=================================

- 2016-10-28 (bug #5693)
  The suboption "endcolor" of the "shading" graphics appearance option did
  not check whether the supplied colorspace was identical to the one in the
  "fillcolor" option.
  
- 2016-10-27 (bug #5692)
  Using "startcolor=none" in PDF_shading() could cause a crash.

- 2016-10-27 (bug #5690)
  Shadings based on ICCBased Gray colorspace were emitted with an incorrect
  function, resulting in pure black output instead of the expected gradient.

- 2016-10-25 (bug #5459)
  Changed the font encoding handling for form fields to work around
  display problems in Acrobat: for type=checkbox and radiobutton in
  PDF_create_field() no font is required. If a font is specified, only
  ZapfDingbats with encoding=builtin is accepted.
  Fonts loaded with encoding=unicode will not be loaded automatically with 
  encoding=winansi again. It is recommended to load TrueType/OpenType fonts
  with an 8-bit encoding instead of "unicode".

- 2016-10-25 (bug #5683)
  PHP 7 could crash when application code extended the PDFlib class.

- 2016-10-19 (bug #5676)
  PDF_fit_table(): rewind=1 did not completely rewind Textflows in cells
  outside the table instance. 

- 2016-10-19 (bug #5677)
  Fixed a small memory leak in PDF_create_field() in case an exception was
  thrown.

- 2016-10-18 (bug #5679)
  The tagging option "lang" did not accept some correct ISO 639-1 language
  codes, e.g. "nb" for Norwegian.

- 2016-10-17 (bug #5673, bug #5591/REOPENED)
  PDF_info_textflow(): textwidth=0 and textheight>0 are only reported
  for empty text lines if "truncatetrailingwhitespace=false" is set. By
  default, trailing whitespace is removed.
  
- 2016-10-11 (bug #5675)
  When a spot color was set (for example, with PDF_setcolor() or
  PDF_set_graphics_option(), PDFlib did not check whether the supplied handle
  actually referred to a spot color.


===================================
PDFlib 9.0.7p2 (September 27, 2016)
===================================

- 2016-09-27 (bug #5662)
  PDF_fit_table(): a table row could incorrectly be repeated in the next
  table instance under very specific conditions involving use of the
  "minrowheight" option.

- 2016-09-26 (bug #5666)
  An incorrect SMask was created for PNG images with more than one entry in
  the tRNS chunk if bitsPerComponent=1/2/4 and the image width wasn't divisible
  by 8/4/2.

- 2016-09-23 (bug #5665)
  If the /Group of an imported page was represented by an indirect object
  it got lost with PDF_open_pdi_page() in PDF/VT mode (a null object was
  emitted instead of the Group dictionary).

- 2016-09-06 (bug #5658)
  PDF_fit_textline() didn't honor the "blind" option, i.e. the text output
  appeared on the page although it shouldn't.

- 2016-09-06 (bug #5656)
  PDF_load_image() with "infomode" could incorrectly be called in object
  scope, resulting in a crash.

- 2016-09-01 (bug #5653)
  SVG import: images and vector graphics within a pattern could appear
  mirrored.

- 2016-08-29 (bug #5639)
  Implemented the "removeunusedlayers" option for PDF_open_pdi_document(). If
  it is set to false, all layer definitions are preserved regardless of their
  actual use on a page. This may be required to preserve hierarchical layers
  which don't have any own content, but only child layers. This setting also
  speeds up processing, but may result in unneeded layer definitions in the
  output.


================================
PDFlib 9.0.7p1 (August 26, 2016)
================================

- 2016-08-26 (bug #5631)
  The PHP7 wrapper did not call PDF_delete() in the destructor.

- 2016-08-24 (bug #5650)
  PDFlib for Ruby 2.3 could fail with
  LoadError in Customers::ArtefactsController#show
  "libgmp.so.3: cannot open shared object file:
   No such file or directory - .../PDFlib.so"
  due to a build problem

- 2016-08-24 (bug #5645)
  The "fontstyle" font option was not correctly processed for fallback fonts.

- 2016-08-21 (bug #5636)
  The last line of a Textflow could be missing under specific circumstances
  as a result of the fix for bug #5233 which was incomplete for charspacing > 0.


============================
PDFlib 9.0.7 (July 26, 2016)
============================

- 2016-07-26 (feature #2122)
  Modified the starter_geospatial samples to apply geospatial information to
  the page instead of to an image, which is required to create output that
  works with the Avenza viewer. For the same reason a workaround for the
  optional "bounds" entry is now demonstrated in the sample code.
  
- 2016-07-26 (feature #2124)  
  Modified the starter_block sample to demonstrate processing of input
  Block templates containing multiple pages.

- 2016-07-26 (bug #5614/bug #5137)
  The table engine could emit a confusing error message
  "Calculated table height X is too large (> Y, shrinking Z%)"
  if the last cell in a row was too small to hold a Textflow. Now a clear
  message is emitted in this situation.

- 2016-07-25 (bug #5622)
  The simple text output functions PDF_set_text_pos() etc. emitted a
  non-sensical error message
  "Floating point number 73000000000000000.000000 too large for PDF"
  instead of
  "Font size not specified for text"
  if the "font" option was set, but not "fontsize".

- 2016-07-25 (bug #5621)
  The option "xadvancelist" of PDF_fit_textflow() ignored the last specified
  value if the number of values in the list was smaller than the number of
  glyphs.

- 2016-07-25 (feature #2058)
  Replaced the Visual Studio 2005 project files for the C/C++ samples with
  newer ones for Visual Studio 2010.

- 2016-07-25 (bug #5620)
  The names of the temporary files created by the "linearize" and "optimize"
  options of PDF_begin_document() could collide in very rare cases, resulting
  in spurious PDI error messages during the second processing pass.

- 2016-07-25 (bug #5618)
  PDF_fit_table() now supports fitmethod=auto as follows: if the table box is
  narrower than the fitbox it is enlarged to the fitbox width. This slightly
  changes the previously undocumented behavior of fitmethod=auto for tables.
  The default fitmethod for tables was incorrectly documented as "meet"
  instead of "clip".

- 2016-07-22 (bug #5617)
  ICC profiles with a device class other than "prtr" or "mntr" were incorrectly
  accepted as output intent for PDF/A-2/3. Although not mandated by ISO
  19005-1 they are now also rejected in PDF/A-1 mode.

- 2016-07-21 (feature #2131)
  The deprecated function PDF_add_thumbnail() is now a no-op since users
  didn't create thumbnails, and Acrobat ignores embedded thumbnails anyway.

- 2016-07-21 (feature #2099)
  Reduced the amount of administrative memory per page by ca. 13%. This is
  important for documents with a large page count since all page structures
  are kept in memory until the end of the document.

- 2016-07-20 (bug #5616)
  Supplying a template handle (instead of an image handle) to
  PDF_fill_imageblock() resulted in wrong scaling of the template.

- 2016-07-19 (bug #5608)
  Certain kinds of damaged TrueType fonts could cause a crash.

- 2016-07-19 (feature #2119)
  Further reduced code and data size of the PDFlib Mini Edition (ME) by
  removing features which are usually not required on embedded systems.

- 2016-07-07 (bug #5605)
  The starter_pdfvt2.c sample used the deprecated API function
  PDF_setdashpattern() instead of the newer PDF_set_graphics_option().

- 2016-06-28 (bug #5587)
  Automatic table tagging must create a dummy table cell tag for cells which
  haven't been specified and therefore remain empty. However, the dummy tag
  was not created for empty header cells.

- 2016-06-27 (bug #5591)
  PDF_info_textflow() now returns a positive value for textheight instead of 0
  (and textwidth=0) for empty text lines.

- 2016-06-25 (bug #5595)
  The starter_pcos.c sample didn't compile on OS X in C++ mode due to a missing
  cast.

- 2016-06-25 (bug #5584)
  PDF/X-4p and PDF/X-5pg incorrectly used string format for URLs instead of the
  required URL specification format.

- 2016-06-20 (bug #5585)
  Calling PDF_fill_textblock() for the second Block in a series of linked
  Textflow Blocks didn't produce any text output although the first call to
  PDF_fill_textblock() returned "_boxfull" and not all text was filled into
  the first Block (bug introduced with the fix for bug #5468 in PDFlib 9.0.6p4).

- 2016-06-15 (bug #5579)
  Avoid a potential crash in the XML parser caused by malformed XML data.

- 2016-06-15 (bug #5573)
  PDF_fit_textflow() allows a tolerance of 1e-6 when processing tab values
  to prevent unexpected behavior caused by unavoidable inaccuracy of floating
  point calculations. 


==============================
PDFlib 9.0.6p9 (June 09, 2016)
==============================

- 2016-06-09 (bug #5569)
  Made the source code compatible with C++11 syntax requirements as enforced
  by Visual Studio 2015 in C++ mode.
 
- 2016-06-09 (bug #5572)
  The /W array in the font resource of a form field could incorrectly be
  omitted for CID fonts, resulting in wrong text spacing in the field for
  glyphs with a width different from 1000.

- 2016-06-07 (bug #5547)
  The pCOS pseudo object "linearized" incorrectly returned false/0 for
  linearized PDF documents > 2GB. Note that ISO 32000-1 doesn't clearly
  state that such files are actually legal.
  PDFlib now emits a warning when linearizing files > 2GB since Acrobat
  doesn't flag such documents as linearized.

- 2016-06-06 (bug #5540, feature #2104)
  pCOS: significantly improved the performance of bookmark retrieval (iterating
  over the bookmarks[] array) by ca. 20 percent.

- 2016-05-30 (bug #5559)
  A wrong glyph was emitted for U+F900 if the font contained more than
  0x1600 glyphs, e.g. NotoSansCJKjp-Medium.otf.

- 2016-05-30 (bug #5558)
  PDF_info_matchbox() didn't ignore named matchboxes created by PDF_fit_image()
  in blind mode.

- 2016-05-30 (bug #5554)
  The emulation of the deprecated API PDF_show_boxed() with Textflow didn't
  treat trailing spaces correctly. The problem has been fixed by applying
  the Textflow option "truncatetrailingwhitespace=false".

- 2016-05-24 (bug #5550)
  PDF_info_pdi_page() incorrectly did not accept (and ignore) some options
  of PDF_fit_pdi_page() with the keywords "fittingpossible", "lang",
  "topleveltag", "topleveltagcount". This is a documented convenience
  feature to facilitate unified option lists.

- 2016-05-23 (bug #5548)
  Loading a TrueType font without "cmap" table could cause a crash. 


=============================
PDFlib 9.0.6p8 (May 09, 2016)
=============================

- 2016-05-09 (bug #5536)
  PDF_open_pdi_page() incorrectly threw an error
  "Page 'X' of Tagged PDF document 'YYY' can be placed only once with
  usetags=true"
  when the same page was opened again for another output document.

- 2016-05-08 (bug #5532)
  Significantly improved the performance of splitting very large documents
  into small fragments of a few pages. When a PDI document is kept open across
  multiple output documents the time required for importing a single page is
  now independent from the total number of pages in the imported document.

- 2016-05-02 (bug #5533)
  PDF_create_annotation(), option "name": the function call now fails if
  a name is supplied which was already used for an earlier annotation on the
  same page. 

- 2016-05-02 (bug #5523)
  PDF_load_image() with imagetype=ccitt or raw: copy the incoming image data
  only if required due to the "invert" option.

- 2016-04-26 (feature #2048)
  Changed the default of the "copy" option of PDF_create_pvf() from "false"
  to "true" for all language bindings except C/C++. This avoids possible
  problems in situations where the client doesn't have full control over
  memory allocation and freeing, especially with garbage collection where
  the language no longer sees any reference to the data.

- 2016-04-25 (bug #5525)
  Gracefully handle certain invalid character reference sequences instead of
  applying incorrect character replacement.

- 2016-04-25 (bug #5523)
  Improved the performance of image processing with PDF_create_pvf() and
  PDF_load_image() (especially for bitmapped glyphs of Type 3 fonts) by
  avoiding a redundant copy of the data and optimization the allocation
  strategy.

- 2016-04-19 (bug #5513)
  Adding the mapping U+00DF (germandbls) to "ss" to the list of typographically
  similar characters. This way the character can be approximated even when used
  with fonts which don't contain it. Similar mappings for U+1E9E, U+0132 and
  U+0133 have been added. 


===============================
PDFlib 9.0.6p7 (April 13, 2016)
===============================

- 2016-04-13 (bug #5504)
  In Tagged PDF mode PDF_fit_pdi_page() could reject a page which contains
  only Artifacts or ILSEs (but no structure elements) with the error message
  "Element type 'Document' cannot contain direct content, but only other
  structure elements"
  if a grouping element is active. In this situation the page is now
  wrapped with a "PlibASpan" tag to avoid direct content. This approach
  works only in PDF/UA mode since here all content consists of structure
  elements and Artifacts.

  In PDF/UA mode PDF_fit_pdi_page() could reject an empty page with the
  inappropriate message
  "Element type 'Document' cannot contain direct content, but only other
  structure elements".
  Now empty pages can always be imported regardless of the tag structure.

- 2016-04-05 (bug #5497)
  PHP binding: PDF_info_graphics() with "fittingpossible" could incorrectly
  complain about invalid handles (e.g. "Option 'defaultrgb' has bad ICC profile
  handle X").

- 2016-04-05 (bug #5501)
  PDF_load_image() with option "clippingpathname": if "infomode=true" an
  image handle is returned instead of an error even if the specified
  clipping path is not present in the image file. The handle can be supplied
  to PDF_info_image() with the keyword "clippingpath" to check the existence
  of clipping paths. This behavior solves the problem that image data was
  embedded even if PDF_load_image() returned an error caused by a missing
  clipping path.


===============================
PDFlib 9.0.6p6 (March 30, 2016)
===============================

- 2016-03-30 (bug #5493)
  Fixed problem in PDF_get_value() with key "textx", which happens after
  calling PDF_fit_texline() with a font loaded with encoding=unicode and
  charspacing != 0.

- 2016-03-30 (bug #5491)
  Fixed buffer overflow for long file names.


===============================
PDFlib 9.0.6p5 (March 23, 2016)
===============================

- 2016-03-23 (bug #5475)
  Further performance improvements for importing very large Tagged PDF
  documents with a linear tag structure.
  
- 2016-03-23 (bug #5479)
  Implemented the new "strict" suboption of the "metadata" option which
  disables automatic fixing of minor syntactic issues in the user-supplied
  XMP.

- 2016-03-23 (bug #5487)
  The parser for the CSS shorthand "font" property in SVG didn't correctly
  handle unquoted font family names containing spaces.

- 2016-03-22 (bug #5456/REOPENED)
  The previous fix for Textflows with verticalalign=bottom and wrap boxes
  wasn't complete.

- 2016-03-21 (bug #5480)
  Fixed a crash in PDF_fit_graphics() which occurred when PDF_info_graphics()
  had been called earlier with "fittingpossible" and a named matchbox.

- 2016-03-21 (bug #5478)
  Reduced the memory usage of PDF_open_pdi_document() with usetags=true by
  ca. one third through more efficient parameterization of the vector class.

- 2016-03-21 (bug #5483)
  Source code packages only: removed a confusing internal option from the
  help message of the configure script for Windows.

- 2016-03-10 (bug #5472)
  PDF_create_field() incorrectly rejected the "action" option with
  "Unknown option '<trigger>'" when one of the trigger events open/close/
  visible/invisible was supplied.


===============================
PDFlib 9.0.6p4 (March 02, 2016)
===============================

- 2016-03-02 (bug #5485)
  The PHP binaries for OS X required OS X 10.9 or above due to a problem with
  the build process (problem introduced in PDFlib 9.0.6p1). Now they work
  with OS X 10.6 and above, with the exception of PHP 7 binaries which require
  OS X 10.9.

- 2016-03-02 (bug #5471)
  Updated the PECL package for PHP to pdflib-4.0.0.tgz.

- 2016-03-02 (bug #5469)
  PDF_fit_table() would unexpectedly produce an empty cell and split a table
  if minrowheight was set to a value between 0 and the height of the first
  line for a Textflow line. Although the Textflow couldn't be placed, an
  undesired empty table cell was created nevertheless. Now the last table
  row is no longer split in this situation.

- 2016-02-25 (bug #5464)
  If an SVG graphics contained an image which could not be loaded,
  PDF_load_graphics() silently ignored the image instead of failing, even with
  the option "errorconditions={references={image}}". Now processing fails
  when this option is supplied.

- 2016-02-24 (bug #5468)
  Clarified the behavior of PDF_fill_textblock() for Blocks with status=ignore
  where the "textflowhandle" option is supplied. If the handle is -1, a
  handle to an empty Textflow is returned; otherwise the Textflow handle
  is returned without modifying the Textflow (since no output is created).

- 2016-02-23 (bug #5467)
  The charspacing and wordspacing values were applied with incorrect sign
  in vertical writing mode (bug introduced in PDFlib 9.0.5).

- 2016-02-23 (bug #5465)
  Significantly improved the performance of PDF_open_pdi_page() for very
  large PDF/UA documents. A lot of time was spent for checking the "Lang"
  attribute of imported structure elements which is now optimized.

- 2016-02-23 (bug #5463)
  Implemented support for the CSS shorthand "font" property in SVG graphics.
  
- 2016-02-19 (bug #5460)
  In PDF/UA mode PDF_fit_pdi_page() could fail if an imported page was
  placed in multiple different output documents:
  "Page '..' of Tagged PDF document '...' can be placed only once
  with usetags=true"
  This message is not appropriate if the placements affect different output
  documents.

- 2016-02-19 (bug #5462)
  In PDF/UA mode PDF_fit_pdi_page() could reject an empty page with the
  inappropriate message
  "Element type 'Document' cannot contain direct content, but only other
  structure elements".
  Now empty pages can always be imported regardless of the tag structure.
  
- 2016-02-15 (bug #5456)
  Textflow: the combination of verticalalign=bottom and wrap boxes could
  result in incorrect placement where the vertical alignment requirement was
  not met.

- 2016-02-15 (bug #5455)
  CEF fonts without a "head" table were assumed to always use 1000 units per
  em, which isn't correct for some fonts. As a result, the glyph widths were
  scaled incorrectly.

- 2016-02-15 (bug #5454)
  Font handling for SVG documents could occasionally trigger an internal
  error message
  "Illegal array index ... in function pdc__vtr_at"
  or
  "Floating point parameter 'fontsize' has bad value 0.000000000000000
   (too close to 0)".
  This was caused by incorrect handling of fallback fonts for a font with
  artificial font style or weight if a fallback font for the main font was
  already available.
  

==================================
PDFlib 9.0.6p3 (February 03, 2016)
==================================

- 2016-02-03 (bug #5443)
  Textflow: although the "leader" option disables kerning, the kerning values
  were nevertheless taken into account for the width calculations, resulting
  in incorrect output. Typically, the dotted leader line would overshoot if
  the font contained a kerning pair for "..". 

- 2016-02-03 (bug #5445)
  Improved performance of Tagged PDF generation for document structures with
  large numbers of sibling elements in the structure tree.

- 2016-02-02 (bug #5435, feature #1550)
  The PHP 7 binding for Windows 64-bit did not correctly pass parameters and
  could emit inappropriate error messages of the kind
  "Handle parameter or option of type '...' has bad value 0".

- 2016-02-02 (bug #5444)
  When a TTC font was found, but the requested font name was not available
  in the collection, PDF_load_font() would emit an incorrect message
  "Function must not be called in 'object' scope".

- 2016-01-25 (feature #2062)
  Implemented the keyword "type" for PDF_info_path() to query the type of a
  point on the path.

- 2016-01-20 (bug #5437)
  PDF_get_pdi_parameter() in the PHP 7 binding did not handle returned strings
  correctly, which could result in garbage characters at the end of a string.

- 2016-01-08 (bug #5430)
  PDF_makespotcolor() could crash in the COM binding (bug introduced in
  PDFlib 9.0.2p4)

- 2016-01-08 (feature #2055)
  Implemented the CSS property "background-color" for SVG graphics.

- 2016-01-05 (feature #2054)
  Fetch the capHeight and xHeight values from the PCL table of TrueType fonts
  without any OS/2 table to improve the accuracy of glyph placement.


==================================
PDFlib 9.0.6p2 (December 17, 2015)
==================================

- 2015-12-17 (bug #5359/REOPENED)
  The option "createrichtext" of PDF_create_annotation() did not ensure that
  only grayscale or RGB colors were used in the supplied Textflow. As a result,
  CMYK colors were incorrectly interpreted as RGB values.

- 2015-12-17 (bug #5422)
  Fixed a crash when importing SVG files where a "transform" attribute
  contained only whitespace.

- 2015-12-14 (bug #5417)
  The PHP mini samples starter_svg.php, starter_pdfvt1.php, starter_webform.php
  did not use the "dirname" idiom for specifying the searchpath in a
  platform-independent way.

- 2015-12-11 (bug #5423)
  Reject ICC profiles with an internal version number < 2.0 since such
  versions have never been published and Acrobat issues an error message for
  such profiles.

- 2015-12-09 (bug #5420)
  The "colorize" option was incorrectly accepted for RGB and RGBA PNG images.

- 2015-12-08 (bug #5416)
  The PDFlib class could not be extended in the PHP 7 binding due to a
  combination of an incorrect flag in the language wrapper and modified
  behavior in PHP 7. 


==================================
PDFlib 9.0.6p1 (December 04, 2015)
==================================

- 2015-12-04 (bug #5411)
  The DSO for PHP 7 on OS X didn't work with the PHP 7 final release due
  to a build problem.


================================
PDFlib 9.0.6 (November 24, 2015)
================================

- 2015-11-24 (bug #5362)
  When feeding a Textflow to the "createrichtext" option of
  PDF_create_annotation(), a newline is now created in XFA automatically.

- 2015-11-23 (bug #5377)
  Modified the starter_pcos mini samples for C, PHP, Python and Ruby to avoid
  the deprecated API PDF_utf8_to_utf16() in favor of PDF_convert_to_unicode(). 
 
- 2015-11-23 (bug #5353)
  Added a sanity check for the number of components in JPEG 2000 images
  relative to the colorspace.

- 2015-11-20 (bug #5402)
  Suppress empty rectangles which were created internally in certain situations,
  e.g. for the "showborder" option in the absence of a fitbox.

- 2015-11-19 (feature #1582)
  Implemented the option "transform" for PDF_open_pdi_page() so that an
  imported page can be adjusted in size, rotation, or location.

- 2015-11-18 (feature #2012)
  Implemented support for watermarks which can be edited in Acrobat (new
  option "watermark" in PDF_begin_template_ext()).

- 2015-11-18 (bug #5389)
  The tagging sequence "tagname=Artifact artifacttype=Pagination" with
  compatibility < 1.7 triggered an incorrect exception
  "Value 'Pagination' of property 'artifacttype' for tag 'Artifact' requires
  PDF 1.7" although there are no restrictions for the option "artifacttype".

- 2015-11-18 (feature #1927)
  Check XMP on non-document-level (e.g. page-level XMP) for PDF/A extension
  schema requirements. Unlike PDF/A-1, this is required for PDF/A-2 and PDF/A-3.

- 2015-11-17 (bug #5339)
  Modified the colorspace checks in the JPEG 2000 parser as follows:
  - "colr" boxes with METH=4 don't immediately trigger rejection, but only
    if no other usable colorspace is present.
  - The check that the "colr" box with APPROX=1 uses only METH=1, 2, or 3 is
    now only applied in PDF/A-2/3 mode.

- 2015-11-17 (bug #5350)
  Modified the JPEG parser to avoid mistreating certain JPEG 2000 flavors as
  damaged JPEG images. This modification involved removal of very old and
  deprecated code for skipping initial garbage and some conditional code
  for the SAS compiler.

- 2015-11-16 (feature #2039)
  Implemented the additional IpCOS interface in the Java binding which offers
  all core pCOS API functions plus various support functions for error handling,
  PVF handling etc. This interface facilitates demonstration of pCOS features
  in the pCOS Cookbook regardless of which product is used.

- 2015-11-16 (feature #2030)
  Relax the PDF/UA-1 requirement that TH elements require the "Scope"
  attribute since this requirement has been dropped from ISO 14289-1:2014.

- 2015-11-16 (bug #5390)
  PDF_fit_textline() and other content placement functions could crash in
  Tagged PDF mode if no structure element was active. This rare situation can
  happen, for example, when creating a template before the first page.

- 2015-11-11 (bug #5365)
  Text options installed with PDF_set_text_option() could get lost if
  PDF_setfont() was called afterwards (note that the API Reference warns
  against mixing both kinds of calls).
  
- 2015-11-03 (bug #5373)
  Incorrectly encoded TrueType text fonts with PUA values in the Microsoft
  Windows cmap are treated as Unicode text fonts provided usable glyph
  names are present in the font's "post" table.

- 2015-11-03 (bug #5359)
  The option "createrichtext" of PDF_create_annotation() did not ensure that
  only grayscale or RGB colors were used in the supplied Textflow. As a result,
  CMYK colors were interpreted as RGB values.
 
- 2015-10-27 (bug #5357)
  Implemented the options "artifactsubtype", "artifacttype" and "contents"
  for PDF_begin_mc() and PDF_begin_mc_point(), and clarified the supported
  subset of standard tagging options for these functions.

- 2015-10-26 (bug #5352)
  Prevent denial of service attack via crafted TIFF images with huge pixel
  size (CVE-2015-7313). 

- 2015-10-20 (bug #5349)
  PDF_create_annotation(): the PDF 1.5 keywords "rclosedarrow" and
  "rclosedarrow" for the option "endingstyles" did not work.


=================================
PDFlib 9.0.5p5 (October 14, 2015)
=================================

- 2015-10-14 (bug #5338)
  The OS X framework could be broken in some packages.

- 2015-10-14 (bug #5340)
  Adjusted the following PHP mini samples to prepare them for PHP 7:
  starter_fallback.php, starter_pdfvt1.php, starter_portfolio.php,
  starter_shaping.php

  Without the constructor renaming PHP 7 would emit the following warning:
  "Methods with the same name as their class will not be constructors in a
   future version of PHP; shaping has a deprecated constructor in XXX.php".

- 2015-10-12 (feature #2021)
  Added support for the RDF shorthand attribute syntax which is sometimes used
  in XMP metadata.

- 2015-10-09 (bug #5329)
  The sample application in the iOS package didn't run out of the box due
  to a packaging problem.

- 2015-10-09 (bug #5331)
  Modified the fix for bug #5072 such that the Unicode remapping is also
  suppressed for U+00AD to prevent the mapping for U+002D from being lost
  for fonts where both characters are represented by the same glyph.

- 2015-10-05 (bug #5327)
  In certain situations PDFlib could reject XMP due to PDF/A extension schema
  description problems even when not creating PDF/A output. 

- 2015-09-28 (bug #5325)
  Fixed heap corruption caused by EBCDIC-encoded PFA files on EBCDIC systems.


===================================
PDFlib 9.0.5p4 (September 18, 2015)
===================================

- 2015-09-18 (feature #1903)
  Added support for PHP 7 (which is currently in beta).

- 2015-09-18 (bug #5319)
  Subsetting certain OpenType fonts, e.g. DFMaruGothicPro5-W5 could result
  in invalid subsets which triggered an Acrobat error message
  "Cannot extract the embedded font '...'. Some characters may not display
  or print correctly."
  The reason was that the fix for bug #5173 was not yet general enough.
  
- 2015-09-18 (bug #5303)
  Reject TIFF CIELab images with bpc != 8.

- 2015-09-17 (bug #5302)
  Drop .jpm from the list of file name suffixes for images since JPEG 2000
  part 6 (Compound) images are not actually supported.

- 2015-09-16 (bug #5317)
  Encoding IBM-1145 could not be opened on zSeries.

- 2015-08-18 (feature #2000)
  TrueType/OpenType fonts with a type 12 cmap: the generated ToUnicode CMap
  could incorrectly map the space character to U+FFFD instead of to U+0020
  if the font mapped multiple control characters and U+0020 to the same glyph.

- 2015-08-18 (bug #5296)
  PDF_fill_image_block() didn't ignore position=auto as it should, but placed
  the image outside the block instead.


================================
PDFlib 9.0.5p3 (August 17, 2015)
================================

- 2015-08-17 (bug #5289)
  PDF_fit_textflow() did not correctly identify attempts at using "restore"
  without any prior "save".

- 2015-08-13 (feature #1991)
  Implemented the "datestring" option for PDF_create_annotation() to pass
  a specific creation date for annotations. This may be useful for applications
  which clone old annotations.

- 2015-08-13 (bug #5260)
  Added support for Perl 5.8 on HP-UX IA64.

- 2015-08-13 (bug #5287)
  PDF_fit_textflow() with verticalalign=bottom and fitmethod=nofit: overflowing
  text was no longer placed above the top border, but below the bottom
  border, therefore violating the vertical bottom alignment (introduced with
  the fix for bug #5253 in PDFlib 9.0.5p2).

- 2015-08-12 (bug #5288)
  The characters U+00A0 NO-BREAK SPACE and U+202F 202F NARROW NO-BREAK SPACE
  have incorrectly been replaced with the .notdef glyph instead of with the
  glyph for U+0020 if no corresponding glyph was found in the font. 

- 2015-08-12 (feature #1941)
  PDF_create_annotation(): added support for annotations with type "Caret".

- 2015-08-12 (bug #5278)
  A check was missing when loading a raw image with more than 1 bits per
  component and the "mask" option. As a result invalid PDF was generated.

- 2015-08-11 (bug #5276)
  The extension-based search for font or image files was terminated
  prematurely if a directory in the search path was not accessible. As a
  result the misleading error message was emitted:
  "Couldn't open font file 'XXX.tte' for reading (permission denied)".

- 2015-08-11 (bug #5279)
  Fixed a crash on MVS with CICS when no UPR file was found in PVF.

- 2015-08-05 (feature #1944)
  Added support for Perl 5.22.

- 2015-08-04 (bug #5273)
  The 64-bit Python 2.6 binary was missing from the OS X package.


==============================
PDFlib 9.0.5p2 (July 29, 2015)
==============================

- 2015-07-29 (bug #5271)
  The compatibility check for ICC profiles was wrong for TIFF images with
  palette color. As a result, correct RGB profiles were rejected with
  "ICC profile for image file 'XXX' doesn't match image data"
  and incorrect grayscale profiles were accepted.

- 2015-07-28 (bug #5269)
  Interpret Photoshop resource id 0x435 to identify spot color channels as
  such. Previously only the similar older resource id 0x03EF was interpreted.
  As a result, TIFF images which have been created with Photoshop CS3 or
  above and contained a spot color channel had the spot color channel
  incorrectly applied as alpha channel.

- 2015-07-28 (bug #5267)
  The mask (alpha channel) in multi-strip TIFF images with separate image
  planes was not processed correctly.
  
- 2015-07-27 (bug #5265)
  Multi-strip TIFF images with separate image planes could cause a crash if
  the last strip was shorter than the previous strips.

- 2015-07-27 (bug #5266)
  Reject extended JPEG 2000 images (JPX) which use features outside the
  baseline set except those which are explicitly allowed in the PDF reference.
  This check is required to ensure ISO 32000-1 conforming output. 

- 2015-07-27 (bug #5263)
  Reject JPEG 2000 images which are larger than 2GB since such images are
  subject to the 32-bit "integer" restriction in ISO 32000-1. Also, JPEG 2000
  images with a non-zero entry in the XLBox have been interpreted incorrectly.

- 2015-07-21 (bug #5253)
  PDF_fit_textflow() ignored wrapboxes outside the fitbox (bug introduced
  in PDFlib 9.0.2p4).

- 2015-07-15 (bug #5252)
  PDF_add_table_cell(): trying to create tables with more than 32 cells
  resulted in an inappropriate error message
  "Cell in column(s) 33 and row(s) X: Illegal array index 32".
  (Bug introduced in PDFlib 9.0.4p1.)

- 2015-07-10 (bug #5251)
  Guard the logging code against TIFF images with damaged Photoshop
  DisplayInfo resources.

- 2015-07-07 (bug #5245)
  PDF_fit_textflow(): text could end with a single-line paragraph despite
  minlinecount=2.

- 2015-07-07 (bug #5246)
  Clarified the effect of "textrendering" on Type 3 fonts in code and
  documentation.


==============================
PDFlib 9.0.5p1 (June 29, 2015)
==============================

- 2015-06-29 (bug #5234)
  A misleading message "Invalid UTF-8 sequence" was emitted if the text options
  "charref" and "textformat=utf8" were set and the first half of a surrogate
  character was supplied as character reference. Now the clearer message
  "Illegal keyword or HTML character entity '&#x....;' (illegal character code)"
  is emitted.

- 2015-06-26 (bug #5233)
  Textflow: "verticalalign=center" or "bottom" was violated if
  adjustmethod=split was provided and the last text line would fit into the
  line, but not with an additional hyphen character. In this situation an
  additional empty line was created.

- 2015-06-24 (bug #5241)
  The "filename" parameter of PDF_info_pvf() was incorrectly treated in
  the non-Unicode-aware language bindings which could result in garbled
  filenames or an inappropriate error "Invalid UTF-16 string (odd byte count)".
  Affected bindings: C++, Perl, PHP, Python, Ruby, Tcl

- 2015-06-23 (bug #5239)
  TIFF images with photometric=min-is-white, extra samples, and separate
  image plane organization appeared inverted.
  
- 2015-06-19 (bug #5237)
  The "createpvf" option PDF_begin_document() triggered an inappropriate warning
  "Couldn't open PDF file '/pvf/XXX.pdf' for reading (no such regular file)".
  Now the file size of the generated PVF file is emitted for logging level
  api=1.

- 2015-06-16 (bug #5232)
  The "xadvancelist" option of PDF_fit_textflow() didn't accept the value 0
  although this is reasonable for non-spacing glyphs.

- 2015-06-09 (bug #5230)
  PHP binding: PDF_load_image() could crash if an image had an ICC profile
  embedded and the image data had to be inverted (e.g. CMYK JPEG or "invert"
  option). 

- 2015-06-08 (bug #5224)
  PDF_fill_graphics_block(): if a graphics block contained an invalid entry
  "defaultpdf" (which was created by some older versions of the Block Plugin)
  this entry was used instead of "defaultgraphics", and triggered an
  inappropriate error message.

- 2015-05-21 (bug #5213)
  Avoid an empty JBIG2Globals stream for JBIG2 images which have been
  loaded with the "copyglobals" option, but don't actually contain any
  global segment.


===========================
PDFlib 9.0.5 (May 20, 2015)
===========================

- 2015-05-20 (feature #1890)
  PDF_load_image() now rejects JPEG2000 images with illegal palette size,
  and correctly determines the number of components for palette-based JPEG2000
  images which is relevant for rejecting or accepting a user-supplied ICC
  profile.

- 2015-05-18 (feature #1897/continued)
  Always omit the trailing section of embedded Type 1 fonts since this section
  with zero bytes is not actually required per ISO 32000-1.

- 2015-05-18 (bug #5199)
  PDF_create_field() with type=pushbutton, checkbox, or radiobutton incorrectly
  accepted trigger events other than the allowed "activate".

- 2015-05-18 (bug #5205)
  PDF_create_annotation() no longer emits /QuadPoints if usercoordinates=true
  and the annotation edges are parallel to the page edges. This change works
  around display problems in Acrobat with very large or very small scaling
  factors in the CTM.

- 2015-05-18 (bug #5190)
  Perl binding: changed the order of cleanup operations to avoid the message
  "Library context pointer 0x0 is invalid ***" on stdout in rare situations
  related to the order in which the Perl operator calls destructors. The
  problem happened only very close to the end of the process.

- 2015-02-18 (feature #1872)
  Optimized PDI page import to avoid unnecessary wrapping with a Form XObject
  for pages from documents which themselves have been imported with PDI
  without any transformation (e.g. scaling or rotation), provided certain
  conditions related to page import options are met.

- 2015-05-18 (bug #5198)
  PDF_process_pdi(): action=copyallblocks and action=copyblocks could hang
  when copying Blocks which have been converted from AcroForms with the
  PDFlib Block Plugin (any version).

- 2015-05-18 (bug #5202)
  Some JBIG2-compressed images were rejected with the message
  "Corrupt JBIG2 image file 'XXX.jbig2'"
  This problem affected JBIG2 images which contained a segment of type
  "immediate generic region" and and the value 0xFFFFFFFF in the "length"
  field (which is legal according to the JBIG specification).

- 2015-05-18 (feature #1938)
  PDF_open_pdi_document() always imported the structure hierarchy of imported
  Tagged PDF documents, even for untagged output or in object scope. This
  has been changed to the documented default of importing tags only for
  Tagged PDF output to avoid a performance hit in the untagged output case.

- 2015-05-13 (feature #926)
  Added support for proportional metrics in vertical writing mode; it can
  be enabled with the new "readverticalmetrics" font option.

- 2015-05-12 (bug #5195)
  Added support for Visual Studio 2013 (VS12) and 2015 (VS14) to the build
  system.

- 2015-05-06 (bug #5130)
  PDF_create_field() rejects a signature field if a field with the same
  name already exists in the same document.

- 2015-05-08 (feature #1896)
  Implemented the new option "boundingbox" for PDF_begin_template_ext().

- 2015-05-06 (feature #1929)
  Added support for user-supplied custom CMaps.

- 2015-05-06 (bug #5189)
  The SVG property "baseline-shift" is now properly applied to vertical text.

- 2015-05-01 (bug #5188)
  Black-and-white TIFF images with more than 100 megapixels are no longer
  handled in passthrough mode by default, resulting in a single image instead
  of many small strips. The previous limit had been implemented to work
  around memory restrictions in COM, but was no longer required due to changes
  in the processing of black-and-white TIFF images.

- 2015-04-29 (feature #1765)
  Documented support for OpenType Collection (also called Font Collections)
  files according to the OpenType 1.7 specification.

- 2015-04-29 (bug #5185)
  Add the file name to the error message which is emitted for damaged PNG
  images.

- 2015-04-27 (bug #5182)
  Reject HDR TIFF images with photometric=PHOTOMETRIC_LOGLUV or
  PHOTOMETRIC_LOGL since PDFlib cannot convert these to PDF correctly.

- 2015-04-27 (bug #5180)
  Named matchboxes defined in the "fittextflow" option of PDF_add_table_cell()
  could results in wrong matchbox coordinates returned by PDF_info_matchbox().

- 2015-04-27 (bug #5178)
  The /FontName entry in the FontDescriptor did not always match the
  /BaseFont entry in the corresponding font or CIDFont dictionary. Although
  the match is irrelevant for PDF rendering, ISO 32000-1 mandates identical
  entries, and some validators check for equality. 

- 2015-04-23 (bug #5172)
  Emit an error message if the number of fallback fonts for a particular
  font exceeds a font-specific implementation limit.

- 2015-04-23 (feature #1924)
  The "colorize" option of PDF_load_image() now supports a Color option list
  in addition to a spot handle. This facilitates defining and using a spot
  color for colorizing an image without the need for creating and passing a
  spot color handle.

- 2015-04-23 (bug #5176)
  Added a PDI workaround to fix syntax problems in documents created by
  Oracle PDF driver.
 
- 2015-04-23 (bug #5173)
  Subsetting fonts in the "Noto Sans CJK" font family resulted in invalid
  subset font output due to the specific internal nature of the CFF data.
  This triggered the Acrobat message
  "Cannot extract the embedded font '...'. Some characters may not display
  or print correctly."

- 2015-04-23 (bug #5169)
  PDF_fit_image() with the "clipping" option incorrectly clipped BMP images
  from the top instead of from the bottom

- 2015-04-16 (bug #5164)
  Fixed a problem with an uninitialized variable in the XMP parser.

- 2015-04-15 (bug #5163)
  The /Decode array created via the "invert" or "colorize" options of
  PDF_load_image() could be wrong for Indexed and Lab colorspaces or
  rare cases of ICCBased color.
 
- 2015-04-09 (bug #5158)
  Text output in vertical writing mode did not take into account the
  charspacing and wordspacing options. Kerning values for vertical writing
  mode can be applied now, but for compatibility reasons the default of
  the "readkerning" option is false for vertical fonts.  


===============================
PDFlib 9.0.4p2 (April 08, 2015)
===============================

- 2015-04-08 (bug #5105)
  Significantly improved the performance of Tagged PDF import with documents
  containing a very large structure hierarchy.

- 2015-04-02 (bug #5145)
  Updated the published CMap package to PDFlib-CMap-2.0 since PDFlib-CMap-1.0
  contained an outdated Unicode mapping file "Adobe-GB1-UCS2".

- 2015-04-01 (bug #5152)
  Improved the consistency check for JPEG2000 images to ensure that images
  without the required "ihdr" box are rejected before accessing the data
  (and risking an exception). Also check for the required "ftyp" box.
  
- 2015-04-01 (bug #5150)
  Fixed a crash on little-endian platforms with 16-bit RGB TIFF images if
  the TIFF contained damaged row data.

- 2015-04-01 (feature #1913)
  Added a binding for Python 3.3 and above on OS X.

- 2015-03-31 (bug #5149)
  Text output could fail with the message
  "Illegal array index 54328 in function pdc__vtr_at"
  if a glyph from a fallback font was used where the glyph id was larger
  than the number of glyphs in the master font.
 
- 2015-03-31 (bug #5147)
  Accept character devices such as /dev/null as output file.

- 2015-03-26 (bug #5138)
  The default search path entries were incorrectly registered again after
  deleting them when a UPR file was explicitly loaded with the "resourcefile"
  option.

- 2015-03-23 (bug #5136)
  PDI incorrectly rejected strings larger than 64KB with a misleading
  message
  "PDF format error: "Unbalanced '(' in string (file 'XXX' at offset YYY)."
  Since such strings don't appear in well-formed imported pages this problem
  went unnoticed for a long time.

- 2015-03-20 (bug #5134)
  Importing a PDF page with layers caused a crash if /Root/OCProperties/D/OFF
  didn't contain any entries.

- 2015-03-18 (bug #5064)
  Textflow rejected incoming text with more than 255 space characters
  ("Text contains too many spaces (> 255) between words").

- 2015-03-18 (bug #5131)
  Attempting to load unsupported WOFF2 fonts resulted in an unexpected
  message.

- 2015-03-07 (bug #5116)
  Debug builds for Windows crashed upon startup. Since PDFlib GmbH does
  not deliver such binaries the problem affected only source code customers
  with a custom build process.

- 2015-03-05 (bug #5114)
  Fixed wrong format of long integers in TIFF logging output on Windows 64-bit.

- 2015-03-04 (bug #5110)
  CMYK and RGB TIFF images with 1, 2 or 4 bits per component are not supported
  with passthrough=false, but were not rejected.

- 2015-03-03 (bug #5111)
  PDI incorrectly dealt with object streams without any whitespace between
  the last object offset and the first object if the first object represented
  a number.

- 2015-02-27 (bug #5109)
  16-bit TIFF images with little-endian byte order and LZW compression with
  Predictor resulted in incorrect PDF display if they were processed in
  passthrough mode. Workaround: use "passthrough=false".


==================================
PDFlib 9.0.4p1 (February 26, 2015)
==================================

- 2015-02-26 (feature #1892)
  Implemented the new keyword "hostfont" for the "skipembedding" font option.

- 2015-02-26 (bug #5075)
  Refined the search for images referenced from SVG files in combination with
  searchpath to match user expectations. If PDFlib doesn't find a referenced
  file according to the previous method:
  <prog2svg>/<svg2image>/<imagefile> and
  <searchpath>/<prog2svg>/<svg2image><imagefile>
  then it attempts to locate the file without the <prog2svg> component:
  <searchpath>/<svg2image>/<imagefile>.

- 2015-02-25 (bug #5102)
  TIFF images with 1, 2 or 4 bits per component and an alpha channel are
  unsupported, but were not properly rejected, resulting in garbage image
  output.

- 2015-02-25 (bug #5108)
  OpenType features with GSUB LookupType 7 were not interpreted correctly,
  but triggered a warning "Member CoverageFormat has invalid value XXX".

- 2015-02-23 (bug #5062)
  PDFlib for Ruby 2.1 and 2.2 could fail on Linux and FreeBSD with a message
  ".../kernel_require.rb:54:in `require': libgmp.so.3: cannot open shared
  object file: No such file or directory"

- 2015-02-23 (bug #5106)
  UPR files without a newline character at the end could cause a crash.

- 2015-02-23 (bug #5100)
  PDF_open_pdi_page() could throw an exception "Internal error: assertion
  failed" when trying to import a page without a /Type key if this page
  was not the first imported page.

- 2015-02-23 (bug #5104)
  SVG import: the specification does not define the behavior of <textPath>
  elements which are surrounded by text with the attribute text-anchor="middle".
  PDFlib output now drops the surrounding text along with the path text
  to match the behavior of common browsers.

- 2015-02-16 (bug #5091)
  During the first pass of Type 3 font generation with subsetting
  PDF_load_image() with inline=true could incorrectly write glyph outline
  descriptions to the PDF output into the dead area between objects.

- 2015-02-15 (feature #1897)
  Accept PostScript Type 1 fonts in PFB format where the block of trailing
  zero bytes is missing.

- 2015-02-15 (feature #1895)
  Implemented the resource category "cmap" which was already documented,
  but not actually supported in PDFlib.

- 2015-02-13 (bug #5072)
  User-supplied control characters trigged ActualText creation per feature
  #1786, which in turn results in problems with Acrobat's text extraction.
  Control characters now no longer trigger ActualText creation.

- 2015-02-12 (bug #5077)
  Fixed a potential problem with uninitialized memory related to CCITT-
  compressed TIFF images.

- 2015-02-11 (bug #5074)
  Fixed a memory problem in PDF_fit_textflow() which could happen under
  rare circumstances.

- 2015-02-10 (bug #5065)
  Significantly improved performance of resource enumeration for very large
  numbers of fonts or images, e.g. when querying the pCOS paths "length:fonts"
  or "length:pages[...]/fonts".

- 2015-02-10 (bug #5066)
  Control characters replaced by the replacement character in PDF_fit_textline()
  no longer trigger creation of ActualText. 

- 2015-02-10 (bug #5053)
  Eliminated an inappropriate warning with logging class api=2 related to
  the internal use of PDF_deflate_unicode() in the wrappers for Unicode-aware
  language bindings.

- 2015-02-02 (bug #5052)
  PDF_open_pdi_page() could cause a stack overflow with input documents
  which contain layers and invalid recursive resource definitions. As a
  workaround userlayers=false can be used.

- 2015-01-26 (bug #5049)
  Reduced the stack requirements of PDF_fit_table() for tables with Textflow
  cells. Especially on 32-bit machines a very large number of Textflow cells
  in a table could cause a stack overflow.

- 2015-01-22 (bug #5039)
  In some cases Textflow could create isolated lines even if "minlinecount=2"
  was specified.

- 2015-01-19 (feature #1879)
  PDF_set_encoding_char() now honors implicit Unicode semantics in glyph
  names, e.g. "unixxxx", "uxxxxx", "Uxxxxxxxx" etc.

- 2015-01-15 (bug #5032)
  The (unsupported) encodings "macexpert" and "adobesymbol" resulted in
  missing glyphs.

- 2014-12-16 (bug #5005)
  PDF_load_font() with the option "initialsubset" could result in an
  inappropriate warning for the supplied encoding name(s)
  "Illegal HTML character entity 'iso8859' (illegal character name)".


================================
PDFlib 9.0.4 (December 15, 2014)
================================

- 2014-12-15 (bug #5001)
  If a font with fontstyle=bold was active and a template was placed, text
  within the template appeared embolded even if the font for that text didn't
  have fontstyle=bold.

- 2014-12-12 (feature #1861)
  Added a comment to all PHP samples about disabling host font access to
  avoid potential crashes with certain combinations of PHP builds and
  OS X versions.

- 2014-12-11 (bug #4994)
  The "enumeratefonts" action did not create proper resource definitions
  for font styles contained in a TTC file, e.g. "Gill Sans,Italic" was
  created instead of "Gill Sans Italic".

- 2014-12-05 (bug #4931)
  PDF_create_gstate(), option "softmask", suboption "template": according
  to ISO 32000-1 PDFlib now enforces the following rule: if type=luminosity,
  the supplied template handle must have been created with the "colorspace"
  suboption of the "transparencygroup" option with a value different from
  "none". 

- 2014-11-28 (bug #4952)
  The XMP engine produced invalid output if incoming XMP used a prefix
  different from "rdf" for the namespace URI
  "http://www.w3.org/1999/02/22-rdf-syntax-ns#".

- 2014-11-21 (bug #4980)
  The graphics appearance option "dasharray" didn't accept the value "{0 0}"
  for a solid line, and the text option "dasharray" didn't accept the keyword
  "none" for a solid line. For consistency both options now support both
  flavors.   

- 2014-11-20 (bug #4890)
  Emit the /AS entry (appearance state) for radio buttons and check boxes for
  ISO 32000-1 conformance.

- 2014-11-20 (bug #4881)
  The *.vbp project files for Visual Basic included a wrong GUID reference
  to the PDFlib DLL.

- 2014-11-02 (bug #4942)
  Fixed a crash in the XMP engine related to a missing "rdf:Description"
  element.

- 2014-11-06 (feature #1786)
  Implemented the option "actualtext" for PDF_set_text_option(),
  PDF_fit_textline() and PDF_fill_textblock() which controls the creation of
  an ActualText span with appropriate Unicode values for glyphs in a font
  which are used to represent multiple different Unicode values.

- 2014-11-02 (bug #4929)
  The "decorationabove" option was incorrectly set to "false" after a
  PDF_save()/PDF_restore() pair.

- 2014-11-02 (bug #4928)
  The option "fontstyle=bold" didn't have any effect after setting a dash
  pattern.

- 2014-10-28 (bug #4922)
  If PDF_end_mc() was called in template, pattern or glyph scope an incorrect
  error message "Invalid end of marked content (no matching begin)" was
  emitted even with proper nesting of PDF_begin_mc()/PDF_end_mc().

- 2014-10-28 (bug #4923)
  PDF_open_pdi_page() incorrectly rejected the option "transparencygroup"
  with an empty list value although this should be allowed.

- 2014-10-24 (bug #4918)
  Fixed a memory problem when writing high-accuracy float values for geospatial
  PDF or 3D artwork.

- 2014-10-21 (bug #4915)
  PDI did not properly take into account the /Version entry in the Catalog
  when determining the PDF version number.

- 2014-10-20 (feature #1831)
  PDF_info_graphics() with keywords "title" and "description": in addition
  to the outermost <svg> element the outermost <g> element is searched for
  <metadata> to match the behavior of common browsers.

- 2014-10-20 (bug #4912)
  PDF_set_option() did not apply scope checks for the "license" and
  "licensefile" options. This could result in a confusing message
  "Unmatched save level" when a license key was set in page scope.


=================================
PDFlib 9.0.3p5 (October 16, 2014)
=================================

- 2014-10-16 (feature #1766)
  Added support for OpenType lookup type 7 which is required for GSUB tables
  which exceed the 16-bit limit. Lookup type 7 is used in some new fonts
  including Adobe's SourceHanSans.

- 2014-10-16 (bug #4913)
  SVG images could be placed with wrong size if units were used and a viewBox
  was present.

- 2014-10-16 (feature #922/REOPENED, bug #4882)
  The PANTONE spot colors 7548 C - 7771 C and 7548 U - 7771 U were missing
  from the internal list.
 
- 2014-10-15 (bug #4910)
  Avoid the encoding entry "/BaseEncoding/StandardEncoding" since it doesn't
  conform to ISO 32000-1 and is correctly rejected by the PDF syntax check
  in Acrobat Preflight.

- 2014-10-15 (bug #4908)
  Fixed a problem in the build process for the "Release" version of the .NET
  build. The bug prevented successful linking when building PDFlib from the
  source code package.

- 2014-10-15 (feature #1805)
  A small number of file attachments is no longer written with a generalized
  name tree, but the simpler form which uses only a flat array. This is a
  workaround for restricted PDF consumers who cannot deal with general name
  trees, especially in the context of ZUGFeRD invoices.

- 2014-10-09 (feature #1827)
  In addition to the base character the variation selector is now also
  written to the ToUnicode CMap to allow round-tripping of Standard and
  and Ideographic Variation Sequences (IVS).

- 2014-09-30 (bug #4898)
  If a font was loaded in objects scope and supplied to the "font" option of
  PDF_create_field(), an invalid object reference was emitted in the PDF
  output, and the field was ignored by Acrobat.

- 2014-09-24 (bug #4738)
  Added support for PHP 5.6.

- 2014-09-24 (bug #4889)
  A Textflow cell in a table could incorrectly end up without any contents
  under specific circumstances.

- 2014-09-23 (bug #4893)
  Textflow: the "textrise" option was not taken into account correctly for
  calculating the text strips for wrapping. As a result, wrapboxes e.g.
  created by dropcaps were not honored.

- 2014-09-08 (feature #1795)
  Added support for tapping system code pages on Linux with iconv.

- 2014-09-03 (bug #4871)
  PDF_setlinewidth() was incorrectly marked as deprecated in the logging
  output.

- 2014-09-03 (bug #4867)
  Removed deprecated API functions from the prototype list for Eclipse PDT
  and Zend Studio for use with PHP.


===================================
PDFlib 9.0.3p4 (September 01, 2014)
===================================

- 2014-09-01 (bug #4869)
  pCOS: silently ignore invalid ColorSpace resources to avoid an error message.

- 2013-08-26 (bug #4566/REOPENED)
  Using the "fakebold" option before placing an imported PDI page could
  incorrectly also embolden text on the imported page because the text
  state parameters were not correctly reset.
  
- 2014-08-21 (bug #4856)
  Improved the conversion of SVG RGB values which are represented as
  unsigned bytes to double values. This results in improved accuracy and
  better round tripping of RGB color values.

- 2014-08-11 (bug #4850)
  The "svgpath" option of PDF_add_path_point() did not correctly close the
  path with the "z" or "Z" operator.

- 2014-08-11 (bug #4848)
  SVG with stroke-width="0" incorrectly produced a stroked line in the PDF
  output, although SVG demands that no stroke be produced in this case.

- 2014-08-11 (bug #4847)
  SVG: the "transform" attribute in a "text" element was ignored for text
  in a "clipPath" element.

- 2014-08-11 (bug #4843)
  Wrong glyphs could be emitted for TrueType fonts with overlapping segmented
  cmaps.

- 2014-08-04 (feature #1769)
  Added support for Perl 5.20.

- 2014-08-02 (bug #4844)
  PDF_open_pdi_page() could end up in an infinite loop (actually crashing
  because of stack overflow) when importing a page with layers if the page
  contained invalid cyclic references in Form XObjects.

- 2014-07-30 (bug #4835/feature #1779)
  Added support for Ruby 2.1.

- 2014-07-30 (bug #3984)
  The Perl binding emits a clear message now if the Perl interpreter and
  the extension library are not compatible, e.g.

  "Perl API version v5.16.0 of pdflib_pl does not match v5.14.0 at
  /usr/local/perl-514/lib/5.14.1/x86_64-linux-thread-multi/DynaLoader.pm...".

  This feature works with Perl 5.14 and above.


==============================
PDFlib 9.0.3p3 (July 28, 2014)
==============================

- 2014-07-28 (bug #4834)
  Adjusted the C++ wrapper to make it compatible with the historic Visual
  Studio 6 compiler. Note that some of the supplied C++ samples also don't
  compile in VS6, but we didn't make any attempt to rewrite these.

- 2014-07-24 (bug #4145)
  SVG: implemented a missing special rule for radial gradients.

- 2014-07-24 (feature #1763)
  SVG: added support for the "spreadMethod" attribute of the "linearGradient"
  and "radialGradient" elements. 

- 2014-07-22 (bug #4767)
  Updated the build for Windows Compact Embedded (Windows CE), using the
  PDFlib Mini Edition (ME) configuration.

- 2014-07-21 (bug #4828)
  Fixed a packaging problem with the iSeries package.

- 2014-07-21 (bug #4817)
  Some platform-specific auxiliary files were missing in the EBCDIC source
  code packages.
  The --enable-xplink and --with-dataset options can now be combined.
  The --enable-xplink and --disable-ieee options are now passed through to
  auxiliary libraries.

- 2014-07-17 (bug #4821)
  File names are now checked against the specified "filenamehandling" also
  for "filenamehandling=unicode". As a result, file names with invalid UTF-8
  sequences are now rejected.

- 2014-07-16 (bug #4818)
  Large fonts with exactly 65535 glyphs could lead to a crash when creating
  subsets.

- 2014-07-16 (bug #4810)
  A XMP extension schemas for PDF/A was incorrectly rejected with
  "PDF/A extension schema 'xxx' doesn't have description embedded"
  if it used a namespace prefix different from the preferred prefix defined
  in the corresponding extension schema description.
  
- 2014-07-13 (bug #4807)
  XMP merging: PDF/A extension schema description or other nodes could get
  lost if they appeared in two XMP fragments (e.g. supplied to
  PDF_begin_document() and PDF_end_document()) due to a bug in the duplication
  prevention code.

- 2014-07-12 (bug #4813)
  XMP processing: namespace declarations for attributes could get lost for
  elements other than "rdf:Description", resulting in invalid XMP output.

- 2014-07-10 (bug #4808)
  PDF documents larger than 2GB could not be processed correctly on Windows
  64-bit in some situations. The previous limit of 4GB for the unsupported
  "mmiolimit" option has been lifted to support memory-mapping of arbitrarily
  large documents.

- 2014-07-10 (bug #4814)
  PDF input documents with a direct /Encrypt dictionary in the trailer were
  incorrectly rejected ("Indirect object reference expected"). This construct
  is very rare, but legal.

- 2014-07-10 (bug #4798)
  Trying to produce text output in vertical writing mode in combination with
  "italicangle" resulted in an exception. This exception is now downgraded
  to a warning, and "italicangle" is ignored.

- 2014-07-08 (bug #4795)
  Radial SVG gradients with an initial offset larger than 0 or a final offset
  smaller than 1 were not processed correctly.

- 2014-07-08 (bug #4808)
  Preserving XMP metadata from JPEG images with "metadata={keepxmp}" in
  PDF_load_image() didn't work if no Exif marker was present.

- 2014-07-08 (bug #4806)
  .NET: the C++ CLI samples didn't work out of the box due to an incorrect
  path in a "using" directive. Also updated the .NET 4.0 solutions to Visual
  Studio 2010.

- 2014-07-07 (bug #4799, bug #4703/REOPENED)
  The fix for bug #4703 was not complete. PDF_fit_textline() could incorrectly
  issue an error "Floating point number xxx too large for PDF" if
  PDF_set_text_option() was called with textrendering >= 4 before a font was
  set.

- 2014-07-02 (bug #4803)
  (Source code packages only) Added support for 64-bit cross-compilation for
  creating MVS binaries on USS.

- 2014-07-01 (bug #4797)
  (Source code packages only) Extended the build system to support cross-
  compilation for 31-bit/32-bit zLinux/Linux targets on 64-bit systems.

- 2014-06-18 (bug #4787)
  PDI no longer automatically triggers repair mode for a certain kind of
  inconsistency in the xref structures, but attempts to fix the problems
  without a full re-scan of all PDF objects.
 

==============================
PDFlib 9.0.3p2 (June 16, 2014)
==============================

- 2014-06-16 (bug #4782)
  When PDI repair mode adjusted the length of a stream object, the
  /Length3 entry for PostScript Type 1 fonts was not adjusted correspondingly.
  As a result, Acrobat did not use the embedded font, but complained
  "Cannot extract the embedded font XXX. Some characters may not display or
  print correctly".

- 2014-06-16 (feature #1690)
  Dynamic XFA forms are rejected as non-PDF documents since they do not
  conform to ISO 32000-1 and cannot be processed in any meaningful way.
  Previously the dummy page with information about updating Adobe Reader
  has been processed. This caused a lot of confusion but didn't provide
  any benefit.

- 2014-06-16 (bug #4786)
  Text in SVG could have wrong font size in the PDF output since attribute
  values with the units "em" and "ex" were calculated incorrectly, especially
  in the case of fontsize values.

- 2014-06-02 (bug #4773)
  Implemented the font option "simplefont" which helps Acrobat's font
  substitution for unembedded TrueType fonts with an 8-bit encoding.


=============================
PDFlib 9.0.3p1 (May 26, 2014)
=============================

- 2014-05-16 (bug #4764)
  pCOS reported wrong embedding status for embedded OpenType fonts with
  subtype CIDFontType2.

- 2014-05-23 (bug #4763)
  PDF/X-1/3 documents were not correctly identified as PDF/X if the
  standard identifier in the document info dictionary was encoded in
  UTF-16.
 
- 2014-05-21 (bug #4762)
  Aligned the packages for embedded systems more closely with the Linux
  packages, and clarified the role of the PDFlib Mini Edition (ME).


===========================
PDFlib 9.0.3 (May 15, 2014)
===========================

- 2014-05-15 (feature #1738)
  Verified that the source code compiles in C11 mode.

- 2014-05-12 (bug #4754)
  The .NET installer creates the registry entries which are required for
  direct selection of the .NET assembly in VisualStudio's "add reference"
  tab. The "Typical" installation flavor now installs only the .NET 4.0
  assembly.

- 2014-05-12 (bug #4757)
  If a font contained glyphs for use with multiple different Unicode values
  the generated ToUnicode CMap could contain a wrong entry for such glyphs.
  Now the first Unicode mapping is used in case multiple mappings are present.

- 2014-05-12 (bug #4746)
  Fixed an infinite loop in PDF_fit_textflow() related to wrap boxes in a
  fitbox with verticalalignment=bottom. (The previous fix was incomplete.)
  
- 2014-05-12 (bug #4756)
  Updated Makefiles to set X/Open defines which are required for getopt() on
  some platforms (only relevant for sample applications in source code
  packages).

- 2014-05-08 (feature #1737)
  Replaced the DejaVuSerif font in the samples to LinLibertine_R which
  offers more OpenType features. 

- 2014-05-06 (feature #1733)
  Implemented the suboptions includepid/includetid/includeoid for the
  "logging" option to facilitate logging in multi-threaded applications.

- 2014-05-05 (feature #1732)
  Added vendor, product and version information to the manifest of the
  Java binding.


===============================
PDFlib 9.0.2p6 (April 30, 2014)
===============================

- 2014-04-30 (bug #4746)
  Fixed an infinite loop in PDF_fit_textflow() related to wrap boxes in a
  fitbox with verticalalignment=bottom.

- 2014-04-29 (bug #4747)
  Fonts which used a single glyph for Arabic presentation form and general
  form could result in incorrect Unicode mapping since the font engine
  selected the inappropriate Unicode value for the presentation form. As
  a result, glyphs were not visible when addressed with the general Unicode
  value. Now Unicode values for the general forms have priority over
  presentation form values.

- 2014-04-29 (bug #4729 and bug #4749)
  Corrected the behavior of PDF_info_matchbox():
  - Keyword=count and boxname=* returned the number of rectangles for all
    matchboxes on the page instead of the number of matchboxes on the page.
  - Keyword=name incorrectly iterated over all matchbox rectangles instead of
    over all matchboxes. The returned matchbox names could be wrong if at
    least one matchbox had more than one rectangle.
  - Consolidated matchbox and rectangle selection with the "boxname" and
    "num" parameters.

- 2014-04-28 (bug #4741)
  Removed confusing "unsupported parameter" warnings in the logging output
  which were caused by internal settings in the language bindings.

- 2014-04-25 (bug #4724)
  No longer throw an exception when removing a file fails, but emit only
  a warning since this is never a fatal condition and may obscure another
  more important error message.

- 2014-04-25 (bug #4728)
  Unconditionally emit the /W, /S and /Border entries in an annotation
  dictionary (instead of relying on the default values) to work around a
  bug in Adobe Reader.

- 2014-04-23 (bug #4736)
  Improved the error message when forbidden text options were used in
  combination with stringformat=utf8.

- 2014-04-23 (bug #4737)
  Unicode-aware language bindings did not correctly process the option list
  data type "Unichar". However, options of this type (e.g. "charclass")
  accepted only ASCII characters if a literal character was supplied.

- 2014-04-22 (bug #4660)
  Added support for PHP 5.6beta1.

- 2014-04-22 (bug #4727)
  PDF_info_table() and tables with more than one table instance: the y value
  of the last horizontal line (keyword yhorline#) of all but the last table
  instances was incorrectly reported as 0.


===============================
PDFlib 9.0.2p5 (April 10, 2014)
===============================

- 2014-04-04 (bug #4725)
  Clarified the behavior of PDF_info_font() for querying OpenType features,
  and added support for the falt, fina, init, isol and medi features.

- 2014-04-04 (bug #4717)
  Added support for PHP 5.5.0-nozts VS9 which is required for ZendServer 6.3.

- 2014-04-02 (bug #4711)
  Textflow: wrap boxes in combination with verticalalign != top could result
  in incorrect formatting (too few text lines).

- 2014-03-31 (bug #4656)
  Minor adustments for Python 3.4.

- 2014-03-20 (feature #1714)
  Added 84 new colors in the PANTONE PLUS Solid Coated and Uncoated spot
  color libraries. The new colors have been introduced by Pantone, Inc.
  in March 2014.

- 2014-03-27 (bug #4708)
  C++ binding: when using a custom string type with the basic_PDFlib template
  class members of the Exception object were not converted to the custom
  string type. For example, using unsigned short arrays for UTF-16 strings
  (as opposed to native wstrings) would trigger this bug.

- 2014-03-27 (bug #4710)
  Matchboxes could be wrong for images with a mask.

- 2014-03-26 (feature #1686)
  Added support for FreeBSD 10.
  
- 2014-03-20 (feature #1717)
  Improved the PDFlib Mini Edition (ME) for balancing functionality and
  memory requirements.


===============================
PDFlib 9.0.2p4 (March 20, 2014)
===============================

- 2014-03-20 (bug #4705)
  Fixed a crash in PDI related to encrypted PDF for which no userpassword
  was supplied, and where the /Extensions dictionary resides in an object
  stream. As a result, pCOS in minimum mode reports a PDF version number
  in this case which may be too low since the ExtensionLevel is no longer
  honored.

- 2014-03-19 (bug #4703)
  An inappropriate exception "Floating point number ... too large for PDF"
  could be thrown if PDF_set_text_option() was called for a text option
  before any font was set.

- 2014-03-19 (bug #4696)
  Significantly reduced the amount of memory on the stack required for
  importing PDF documents with tags or layers. This reduces the overall
  stack requirements and avoids problems with limited stack size on IIS. 

- 2014-03-17 (feature #1716)
  Reorganized and improved internal PDF_FEATURE_... #defines.

- 2014-03-10 (bug #4691)
  Textflow: for some combinations of wrapping shapes and values of firstlinedist
  the text could be placed incorrectly, resulting in text outside of the
  wrapping shape.

- 2014-03-07 (bug #4688)
  Calling PDF_makespotcolor() in C++ or another Unicode-aware language
  binding with a spot color name containing non-ASCII characters triggered
  an inappropriate error message. 

- 2014-03-06 (bug #4686)
  Fixed a bug with parsing the top DICT Data of the CFF table in OpenType
  fonts. As a result of this bug certain CFF fonts could result in unusable
  font subsets in the PDF and an Acrobat message "Cannot extract the embedded
  font 'XXX'. Some characters may not display or print correctly."
 

==================================
PDFlib 9.0.2p3 (February 24, 2014)
==================================

- 2014-02-24 (feature #1682)
  Implemented the "clockwise" option of PDF_add_path_point() also for
  type=circle, ellipse, elliptical, rect in addition to type=elliptical.

- 2014-02-21 (bug #4684)
  PDF_elliptical_arc() could erratically throw exceptions if the starting
  point of the arc coincided with the end point. Now this situation is
  silently ignored (with a warning).

- 2014-02-13 (feature #1706)
  Implemented the new option "code" for PDF_begin_glyph_ext() which can be
  use to force a specific ordering of glyphs which may be different from
  the creation order. This is useful for using encoding=builtin with Type 3
  fonts.

- 2014-02-12 (bug #4676)
  Improved the output for SVG gradients with multiple identical values
  of stop-opacity in combination with opaque referring shapes.

- 2014-02-12 (bug #4674)
  Significantly improved memory performance by reducing the number of
  malloc/free cycles related to large buffers. This mainly affects
  applications with a large number of pages and few page contents.

- 2014-02-06 (bug #4673)
  When merging two XMP packets the namespace definitions of the second
  package could get lost. 


=================================
PDFlib 9.0.2p2 (January 29, 2014)
=================================

- 2014-01-29 (bug #4662)
  The USS cross build for MVS ended with a compilation error when creating
  XPLINK binaries.

- 2014-01-27 (bug #4659)
  Allow the use of Unicode control characters in user-defined encodings for
  Type 3 fonts. Semantically this doesn't make sense, but some legacy
  application rely on such mappings.
  
- 2014-01-24 (bug #4469)
  Added support for Perl 5.18 on Windows (ActiveState and Strawberry
  builds).

- 2014-01-24 (bug #4657)
  Significantly improved the performance of PDI for tagged input documents.

- 2014-01-22 (bug #4655)
  PDF_fit_table() could trigger an inappropriate error message
  "Invalid UTF-16 string" in Unicode-capable language bindings when "fitfield"
  or "fitannotation" had been used in a corresponding prior call to
  PDF_add_table_cell().
 
- 2014-01-19 (bug #4648)
  Significantly improved the performance of PDI for input documents
  containing layers.
 
- 2014-01-17 (bug #4651)
  pCOS could return PDF/X version information for PDF/X-1 documents with
  a wrong pdfxid:GTS_PDFXVersion property in the XMP metadata (which
  must be ignored for PDF/X-1).


=================================
PDFlib 9.0.2p1 (January 13, 2014)
=================================

- 2014-01-13 (bug #4667)
  Registration of the COM DLL did not work correctly since the version entry
  it the type library did not reflect the fact that a new API function has
  been added in PDFlib 9.0.2

- 2014-01-10 (bug #4644)
  Shapes of type "rect" in PDF_add_path_point() were created in clockwise
  direction. In order to unify the direction of all shapes they are now also
  created in counterclockwise direction, just like "circle" and "ellipse"
  shapes.

- 2014-01-10 (bug #4646)
  Windows builds from a source code package stopped with an obscure error
  message if the Windows SDK 7.0 was not installed.

- 2014-01-10 (bug #4633)
  The XMP parser emitted an inappropriate error message
  "XMP metadata: PDF/A extension schema '...' doesn't have description embedded"
  if a namespace was declared locally at some element instead of at the
  corresponding rdf:Description element.

- 2014-01-07 (bug #4643)
  An inappropriate exception "Unknown option 'tagname'" occurred if the
  "tag" option was supplied to PDF_add_table_cell() in a Unicode-aware
  language binding or a non-Unicode-aware language binding with
  stringformat=utf8.

- 2014-01-02 (bug #4641)
  PDFlib_ios.framework was missing from the PDFlib 9.0.2 package for iOS.

- 2013-12-24 (bug #4635)
  Modified the behavior of the pCOS path prefix "type:" in case of damaged
  PDF documents: instead of throwing an exception, the type "null" is now
  returned when a PDF syntax error is encountered while trying to access
  the PDF object specified in the pCOS path.

- 2013-12-19 (bug #4634)
  When importing a PDF page with layers, PDI ignored layer definitions
  consisting of an OCMD with a single dictionary entry in /OCGs (as opposed
  to an array containing multiple OCGs). As a result, the contents of layers
  appeared on top of each other on the output page.
 

================================
PDFlib 9.0.2 (December 17, 2013)
================================

- 2013-12-17 (bug #4627)
  Setting an empty or NULL license key now results in an exception
  "Invalid license key". Previously it triggered a full resource search
  for a license file, which was undesired and undocumented behavior.

- 2013-12-17 (bug #4631)
  Improved performance in situations with large numbers of image or Form
  XObject resources and many output pages. Most importantly this optimization
  resulted in a significant performance boost when importing many PDF pages.
 
- 2013-12-16 (bug #4632)
  The following functions used parameter names x_1, y_1 etc. instead
  of the documented names x1, y1 etc.:
  PDF_circular_arc(), PDF_curveto(), PDF_rcurveto(), PDF_shading()
  These have been changed to use the documented names. This requires
  corresponding adjustments in Objective-C language clients.

- 2013-12-12 (bug #4629)
  The PDF/UA check in PDF_fit/info_pdi_page() incorrectly rejected documents
  with H1, H2 etc. heading elements on the same level with the message
  "Heading level 'H1' must not be skipped in weakly structured PDF/UA"
  although this construct is allowed if the headings appear in the correct
  order.


==================================
PDFlib 9.0.1p5 (December 06, 2013)
==================================

- 2013-12-06 (bug #4565)
  Implemented Automatic Reference Counting (ARC) in the Objective-C
  sample to reduce overall memory requirements of the sample application.

- 2013-12-06 (feature #1630)
  Although not explicitly forbidden in ISO 32000-1, nested Artifacts within
  a structure element are considered incorrect. PDFlib now avoids this
  construct by automatically suspending and resuming the currently active
  structure element when an Artifact is created. Since this is not possible
  for pseudo elements and Span, Quote, Note, Reference, BibEntry, Code
  (with inline=true), Artifacts are no longer allowed if one of these
  elements is active.

- 2013-12-05 (bug #4612)
  Due to improvements in the Java wrapper the "synchronized" keyword could
  be removed from the internal new() and delete() methods (except for i5).
  This results in a significant speedup of applications with a large number
  of simultaneous threads.

- 2013-12-04 (feature #1649)
  Implemented the "Placement" suboption for the "tag" option and
  PDF_begin_item(). It helps in situations where a Figure element or
  other ILSE is placed as direct child of a grouping element. The new
  attribute avoids the "Possibly inappropriate use" warning in PAC 2.

- 2013-12-04 (bug #4553)
  PDF_fit_textflow() could emit leading spaces at the beginning of a line
  if a space character appeared immediately after an inline option list.

- 2013-12-03 (feature #1652)
  Updated the iOS build with support for iOS 7, XCode 5, and ARM 64-bit.

- 2013-12-03 (feature #1639)
  PDF_open_pdi_page() now also imports the page transparency group by
  default if one is present in an imported page. This behavior can be
  controlled via the option "transparencygroup". The new keyword
  transparencygroup=none has been introduced, and the behavior of this
  option has been streamlined regarding PDF/A and PDF/X. Finally, some
  documentation bugs regarding this option have been fixed.

- 2013-12-02 (feature #1660 and feature #1661)
  Tested PDFlib kernel and all relevant language bindings with Windows Server
  2012 R2 and Windows 8.1. These systems are now part of the list of
  supported platforms.

- 2013-11-29 (bug #4620)
  Text output with activated OpenType features and PDF_info_font() with
  the keyword "featurelist" could emit an incorrect error message
  "Font 'X': Tried to allocate 0 bytes in function tt_get_ligat_subst_format1"
  for OpenType fonts where the number of ligature components in the GSUB
  ligature substitution lookup table (format 1) was larger than the actual
  number of available components in the subtable.

- 2013-11-28 (bug #4613)
  The XMP parser could confuse properties with the same name, but different
  namespace. This could especially affect the PDF/A identifier in the presence
  of a PDF/UA identifier, resulting in wrong values for the "pdfa" pCOS
  pseudo object.
  As a side effect of the change, non-conforming PDF/A documents with a
  wrong namespace URI are no longer treated as PDF/A.

- 2013-11-28 (bug #4614)
  PDF_elliptical_arc() emitted an incorrect warning
  "Floating point parameter 'x_1' has bad value (not a number)"
  when the supplied end point (x, y) coincided with the current point.
  Now this situation is silently ignored.

- 2013-11-25 (bug #4610)
  PDFlib could crash when the rdf:RDF node was missing from user-supplied
  XMP metadata.

- 2013-11-20 (feature #1664)
  Implemented the "preservepua" font loading option which is particularly
  useful to make sure that Japanese Gaiji characters can be extracted
  correctly from the generated document.

- 2013-11-20 (feature #1601)
  Declared PDF_begin_pattern() deprecated; use PDF_begin_pattern_ext() instead.

- 2013-11-20 (feature #1158)
  Reorganized XMP parsing of PDI documents for more efficient access to
  standard identification properties.

- 2013-11-18 (bug #4601)
  PDF_draw_path() with the option "clip" didn't work if none of the options
  "fillrule" or "cliprule" was supplied; the default was implemented
  incorrectly.

- 2013-11-11 (bug #4588)
  PDF_fill_textblock() did not correctly process the "matchbox" option.

- 2013-11-08 (bug #4589)
  PDF_fit_graphics() incorrectly scaled SVG graphics if the current
  transformation matrix included scaling.
  
- 2013-11-08 (bug #4585)
  Added checks in the XMP engine to avoid problems when processing
  Description entries with an empty or missing xmlns attribute. 
  
- 2013-11-04 (bug #4584)
  The PDF output for the georeference options "mappoints" and "worldpoints"
  as well as the 3D options "camera2world" and "cameradistance" is
  automatically emitted with extended floating point accuracy to avoid
  rounding and truncation artifacts.
  
- 2013-10-28 (bug #4509)
  Clarified the requirement of Microsoft redistributable runtime libraries
  for the .NET edition and updated the .NET HowTo correspondingly.
  
- 2013-10-22 (feature #1651)
  If an element contains mixed content (direct content and structure elements)
  the kids are no longer sorted. This has previously been done to work around
  restrictions in Acrobat's Read Aloud and Reflow features, but results in
  undesired modifications to the client-provided tag structure.

- 2013-10-21 (feature #1650)
  Changed the starter_pdfua1 samples to add another P element as parent
  of the Figure element. This more closely matches the recommended use of
  the Figure element.
  
- 2013-10-21 (feature #1634)
  Reworked the starter_webform samples to simplify font handling as a
  benefit of the changes for feature #1625 and bug #4559. Since the Gentium
  font is no longer used in examples it has been removed from all packages.

- 2013-10-18 (bug #4369)
  Clipping rectangles for SVG graphics could trigger an inappropriate
  error "Images and graphics must be tagged as 'Artifact', 'Figure' or
  'Formula' in PDF/UA". Now they are automatically tagged as Artifact.


=================================
PDFlib 9.0.1p4 (October 14, 2013)
=================================

- 2013-10-14 (bug #4573)
  The "enumeratefonts" option didn't create a PostScript font name alias
  for TrueType fonts with a PostScript name which don't have any style
  specification.

- 2013-10-14 (bug #4571)
  The deprecated functions PDF_get_pdi_value() and PDF_get_pdi_parameter()
  could issue a misleading error "Internal error: assertion failed" when
  document and page handles from different PDI documents were mixed.

- 2013-10-14 (bug #4561)
  The starter_basic sample failed with Ruby 1.9 (but not Ruby 1.8 or 2.0)
  due to its use of UTF-8-encoded strings. This has been fixed by adding
  the "coding: utf-8" directive in the header.

- 2013-10-11 (bug #4568)
  When a font was preloaded with embedding, PDF_fill_textblock() did not
  find the cached font, but tried to load it again without embedding. As
  a result an error message "Font must be embedded in PDF/A" was issued
  in PDF/A mode (similar for PDF/X and PDF/UA).

- 2013-10-11 (bug #4570)
  Loading LWFN fonts with certain style properties on the Mac could result
  in a crash.

- 2013-10-10 (bug #4567)
  Symbolic TrueType fonts could be force-subsetted even if subsetting=false
  was requested.

- 2013-10-10 (feature #1625, bug #4559)
  Redesigned the treatment of fonts for form fields in an attempt to balance
  quirks in Acrobat's form handling with ISO 32000 and PDF/UA requirements.
  In the course of the redesign the font option "autocidfont" has been
  declared as deprecated.
  
- 2013-10-09 (bug #4566)
  Using the "fakebold" option before placing an imported PDI page could
  incorrectly also embolden text on the imported page because the text
  state parameters were not correctly reset.

- 2013-10-04 (bug #4473)
  Checked compatibility with OS X 10.9 ("Mavericks"). This involved
  a few changes in the build system and the Xcode project, as well as
  a Mac build for Perl 5.16.

- 2013-09-30 (bug #4554)
  The SVG attributes "textLength" and "lengthAdjust" for vertical text 
  (affected SVG elements: text, textpath, tref, tspan) are now ignored
  since they are not implemented for vertical text.


===================================
PDFlib 9.0.1p3 (September 25, 2013)
===================================

- 2013-09-25 (bug #4557)
  File access didn't work on MVS (bug introduced with the fix for bug
  #4527 in PDFlib 9.0.1p2).

- 2013-09-24 (bug #4555)
  The glyph name table of Mac LWFN Type 1 fonts was not interpreted correctly
  resulting in unusable glyphs.

- 2013-09-20 (bug #4552)
  The dummy appearances created for form fields contained incorrect name
  entries. Now an empty dummy Form XObject is created.


===================================
PDFlib 9.0.1p2 (September 20, 2013)
===================================

- 2013-09-20 (bug #4544)
  The REALbasic binding for Mac didn't support cross-compiling for Linux
  due to a packaging error.

- 2013-09-19 (feature #1627)
  Implemented the option "checkoutputintentprofile" for PDF_open_pdi_document().
  Setting it to false reduces memory requirements if PDF/X or PDF/A
  documents are imported which are known to contain correct output intent
  ICC profiles.

- 2013-09-19 (bug #4548)
  Avoid parsing the output intent ICC profile of PDF/A or PDF/X input
  documents if no PDF/A or PDF/X output is created in order to reduce memory
  requirements.

- 2013-09-18 (bug #4547)
  The final byte in Base64-encoded data could be missing or wrong, resulting
  in inappropriate error messages or warnings for image, graphics or other
  data embedded in SVG.

- 2013-09-18 (bug #4546)
  Using layers could result in an empty /AS entry although this entry is
  not allowed in PDF/A, PDF/UA, and PDF/X. Now the empty dictionary is
  suppressed to avoid validation errors (it didn't do any real harm). 

- 2013-09-17 (bug #4545)
  The PDF/UA standard identifier XMP property "pdfuaid" could get lost
  for user-supplied XMP with multiple namespace declarations for an element.

- 2013-09-16 (bug #4540)
  Work around a compiler bug in the Borland/Embarcadero 64-bit compiler
  which could result in a crash when loading PNG or TIFF images.
  
- 2013-09-16 (bug #4542)
  Empty XMP files for the "metadata" option triggered an internal error.
  Empty files for the "attachments" option were rejected. 

- 2013-09-12 (bug #4532)
  Invalid XMP was emitted if the input XMP contained properties in attribute
  syntax which contained "&" or other characters which cannot be written
  as literals, but require character references.

- 2013-09-11 (bug #4515)
  Added new suboptions "strokecolor", "strokewidth" and "textrendering" for
  the "shadow" text option to enhance control over shadowed text in
  combination with textrendering modes.

- 2013-09-11 (feature #1622)
  Support the "iccprofile" option for BMP, CCITT, GIF, JPEG 2000 and raw
  images (in addition to the existing support for JPEG, JBIG2, PNG, and TIFF).

- 2013-09-11 (bug #4527)
  Incorrect out-of-memory errors could occur if a file name was supplied
  which didn't point to a regular file (e.g. a directory).

- 2013-09-11 (bug #4531)
  PDF_load_iccprofile() could issue a confusing warning
  "Option 'embedprofile' ignored"
  even if this option wasn't provided by the user.

- 2013-09-10 (bug #4539)
  The option "iccprofile" of PDF_load_image() was ignored for JBIG2 images.

- 2013-09-09 (bug #4526)
  PDF_fit_textflow() could emit wrong glyph IDs (resulting in garbled text)
  for SID OpenType fonts if more than 256 different glyphs were used and
  a certain rare condition was true at the end of a text output chunk.

- 2013-08-14 (bug #4523)
  JPEG 2000 images could incorrectly be written with the entry /SMaskInData
  if the "masked" option was supplied to PDF_load_image().
  Even if "ignoremask" was set for JPEG 2000 images, they were considered
  as transparent nevertheless.


================================
PDFlib 9.0.1p1 (August 13, 2013)
================================

- 2013-08-13 (bug #4518)
  The "display" option of PDF_create_annotation() and PDF_create_field/group()
  did not correctly process the "noview" option: the annotation or field
  was invisible on print and visible on screen (instead of vice versa).

- 2013-08-13 (bug #4521)
  Creating page content in PDF/X mode without prior setting the output intent
  was rejected with a confusing message. Now a message is emitted which
  directly mentions the reason of the problem.

- 2013-08-07 (bug #4516)
  PDF_open_pdi_document() with inmemory=true could cause a crash.

- 2013-08-05 (bug #4508)
  convert_to_unicode() in the .NET and COM bindings cut off the generated
  string after the first character.

- 2013-08-05 (bug #4507)
  Detect Apple's sbix-based bitmap fonts and reject them with a suitable
  message.

- 2013-08-05 (bug #4502)
  PDF_info_textflow(): the value of "lastfontsize" could be wrong if
  "fontscale" was applied.

- 2013-07-31 (bug #4497)
  Follow-up to bug #4482: "replacementchar" was still forced to "error" in
  another place. As a result, custom replacement characters could not be
  used in PDF/X-4/5, PDF/A-2/3, and PDF/UA.

- 2013-07-29 (bug #3842)
  The starter_fallback sample didn't work on MVS because the data directory
  did not contain the required CMaps with short MVS file names.


============================
PDFlib 9.0.1 (July 29, 2013)
============================

- 2013-07-29 (bug #4495)
  Empty values for the "userpassword" and "masterpassword" options
  have not been treated correctly in non-Unicode-aware language bindings
  with stringformat=utf8; similar for an empty value of the "searchpath"
  option.
  An empty value for the option "outputformat" of PDF_convert_to_unicode()
  has incorrectly been rejected instead of being interpreted as "utf16".
  
- 2013-07-24 (bug #4488)
  The combination of the options "enumeratfonts" and "saveresources"
  didn't treat file names with non-ASCII characters correctly on Windows.

- 2013-07-24 (bug #4432)
  Added support for the REALbasic successor Xojo.

- 2013-07-24 (bug #3842)
  Fixed searchpath problems in the C samples for MVS.

- 2013-07-24 (bug #4487)
  PDF_create_field/fieldgroup() didn't process some options correctly with
  C++ on EBCDIC platforms if the corresponding font was loaded with a
  non-EBCDIC encoding.
  The following parameters were treated incorrectly as UTF-8 in the
  .NET, Perl, Python, REALbasic, Tcl, Objective-C, and COM bindings: 
  PDF_get_option(), parameter "keyword"
  PDF_load_asset(), parameter "type"
  PDF_load_graphics(), parameter "type".
  
- 2013-07-24 (bug #4485)
  PDF_create_field/fieldgroup() didn't process some options correctly with
  Java on EBCDIC platforms if the corresponding font was loaded with a
  non-EBCDIC encoding.

- 2013-07-24 (bug #4486)
  The "tagname" parameter of PDF_begin_item() was not processed correctly
  in the Java binding if it contained non-ASCII characters.
  
- 2013-07-23 (bug #4381)
  Fixed problems in the C samples for MVS related to encoding and textformat
  issues.

- 2013-07-21 (bug #4417)
  Use double braces for the "searchpath" entries in all samples to caution
  users because otherwise path entries containing a space character would
  be interpreted as two separate entries.

- 2013-07-18 (bug #4482)
  The font option "replacementchar" is no longer forced to "error" in
  PDF/A-2/3, PDF/UA and PDF/X-4/5 modes to allow clients to visualize
  problematic text portions.

- 2013-07-17 (feature #1596)
  Modified the handling of H7, H8 etc. so that they are no longer treated
  as standard elements, but require rolemap entries. Since PDF/UA consumers
  are advised to ignore the rolemapping PDFlib also ignores the rolemaps
  of H7 etc. in PDF/UA mode (other than writing them to the PDF output).

- 2013-07-16 (bug #4479)
  Patterns were displayed differently depending on whether the "topdown"
  option was supplied to PDF_begin_page_ext() or to PDF_set_parameter().

- 2013-07-10 (bug #2558)
  Introduced a new PECL package for building a PDFlib 7/8/9 DSO for use
  with PHP.

- 2013-07-10 (bug #4476)
  Matchbox decorations created for SVG graphics were slightly displaced in
  a topdown coordinate system.

- 2013-07-09 (bug #4474)
  Graphics could have a wrong matchbox if all of the following conditions
  were true: fitmethod=clip, the height of the graphics is larger than
  the height of the fitbox, and a topdown coordinate system is active.

- 2013-07-09 (spin-off of feature #1582)
  Implemented the option "transform" for PDF_begin_template_ext().

- 2013-07-09 (feature #1582)
  Implemented an extended pattern interface in PDF_begin_pattern_ext();
  currently it is only available in the C and C++ language bindings.

- 2013-07-08 (bug #4445)
  Textflow could split the text in an unexpected way with verticalalignment=
  bottom or center and wrap boxes which resulted in increasing line widths
  towards the bottom of the fitbox. 

- 2013-07-05 (bug #4466)
  With errorpolicy=return PDF_end_page_ext() could throw an exception
  "Unmatched save level" if a prior call to PDF_fill_textblock() failed due
  to a missing font.

- 2013-07-02 (bug #4460)
  If an SVG font does not include any glyph for the space character an
  artificial empty glyph is created. In order to match the behavior of
  browsers this artificial space glyph is used instead of the missing-glyph
  even if it is present in the font.

- 2013-07-02 (bug #4456)
  Fixed a packaging problem (wrong lineend charactes) with the CMap package
  for MVS.

- 2013-07-02 (bug #4458)
  PPS: if the Block property "features" was set together with one or more
  other text properties PDF_fill_textblock() did not apply OpenType
  features correctly.

- 2013-07-01 (bug #4451)
  Tuned the XMP implementation as follows:
  - XMP metadata supplied in PDF_end_document() can override XMP supplied
    in PDF_begin_document().
  - If multiple chunks of XMP contained the same properties duplicate
    entries could result in the merged output. Such duplicates are now
    detected and avoided.

- 2013-06-28 (bug #4447)
  Set the glyph bit in the CIDSet stream in PDF/A-1 mode even for glyphs
  without an outline to satisfy the stricter PDF/A-2 check in Acrobat XI
  Preflight. This is required for workflows which create PDF/A-1 and later
  import it into a PDF/A-2 document.
  The CIDSet stream could contain an extra null byte at the end.

- 2013-06-28 (bug #3467)
  Increased the assumed resolution value which is used for scaling SVG
  graphics where no viewBox attribute is present and the viewport size is
  specified in pixels. 

- 2013-06-28 (bug #4454)
  Modified the clipping behavior for the outermost viewport of SVG graphics.
  According to the SVG specification SVG graphics are now clipped only for
  stand-alone graphics, i.e. SVG where width and height of the outermost
  viewport are not specified as percentage.

- 2013-06-28 (bug #4440)
  SVG gradients with gradientUnits="objectBoundingBox" were missing if they
  were referenced from a text element.
   
- 2013-06-26 (bug #4441)
  PDFlib did not emit a /ModDate entry for PDF/A-3 associated files if
  the attachment was loaded from a PVF file.
  
- 2013-06-24 (bug #4434)
  PDF_process_pdi() with "action=copyoutputintent" now silently does
  nothing if the input document doesn't contain any output intent. This
  facilitates blind cloning of PDF/A documents which don't necessarily
  contain an output intent.
 
- 2013-06-21 (bug #4437)
  XMP handling for PDF/A: improved the error message if a custom XMP property
  without PDF/A extension handling was found.

- 2013-06-21 (feature #1580)
  Implemented stricter XMP namespace checks for PDF/A-2 and PDF/A-3 to
  follow the XMP 2005 spec and match the behavior of Acrobat Preflight:
  namespace URIs are now required to end in a "/" or "#" character.
  Otherwise the XMP will be rejected.

- 2013-06-18 (bug #4433)
  The XMP processor incorrectly rejected PDF/A XMP with an extension schema
  if the metadata properties for the extension schema were contained in
  the same rdf:Description node as the corresponding extension schema
  description.


==============================
PDFlib 9.0.0p4 (June 17, 2013)
==============================

- 2013-06-17 (bug #4426)
  Host font support didn't work in the 32-bit build for Borland/Embarcadero.

- 2013-06-17 (feature #1572)
  Relaxed handling of file size and object limits in PDF/A and PDF/X as
  follows:
  - Due to practical demand and consensus with other vendors the 2GB file
    size limit is no longer enforced. This is particularly relevant for
    PDF/VT workflows.
  - The check for the 8M limit for the number of indirect objects can be
    disabled with the new document option "limitcheck".
  
- 2013-06-14 (bug #4422)
  Optimized the linearization of large PDF/VT documents with a DPart
  hierarchy. This significantly reduces processing time and output file
  size. 

- 2013-06-13 (bug #4425)
  Detect errors in invalid BMP image files related to too few image data.
  Missing image parts will be filled up with white pixels.

- 2013-06-13 (bug #4418)
  Modified the C++ sample project for the Borland/Embarcadero compiler to
  turn off optimization. This is required to work around an optimizer
  compiler bug related to C++ string handling.

- 2013-06-11 (feature #1572)
  Increased the maximum number of entries in the "dasharray" option from
  8 to 12 to meet the requirements of demanding graphics applications.

- 2013-06-11 (feature #1430)
  Enhanced the interpretation of OpenType features to support lookup
  types 2, 5, and 6. These context-sensitive lookups are required e.g. for
  fonts which resemble cursive handwriting. As a follow-up the OpenType
  features "calt", "ccmp", "clig", and "cswh" are now also supported.

- 2013-05-08 (feature #1564)
  Enhanced the treatment of clipping paths in Tagged PDF.


==============================
PDFlib 9.0.0p3 (June 05, 2013)
==============================

- 2013-06-05 (bug #4415)
  PDF_info_textline() with the keyword "unknownchars" would incorrectly
  throw an exception "Glyph id 0 (notdef character) not allowed" in
  PDF/A-2/3, PDF/UA and PDF/X-4/5 mode if the tested string contained a
  character for which no glyph was available in the font.

- 2013-06-04 (bug #4412)
  Improved the accuracy of bounding box calculations for Bezier curves in
  image clipping paths to avoid inaccurate image placement in cases with
  large Bezier segments.

- 2013-06-03 (bug #4407)
  SVG patterns could be rendered incorrectly if the global option "topdown"
  was set.

- 2013-06-03 (bug #4404)
  The text option "fontstyle=bold" in combination with "topdown" incorrectly
  increased the font size.

- 2013-06-03 (bug #4400)
  The option "checkcolorspace" was incorrectly documented as "colorspacecheck".

- 2013-05-31 (bug #4409)
  The global option "topdown" was not treated as Boolean type so that the
  variant "notopdown" didn't work.

- 2013-05-28 (bug #4405)
  Added C++ support files to the Borland package.

- 2013-05-27 (bug #4399)
  Option lists with a leading UTF-8 BOM and a space character before the
  first option were incorrectly rejected.

- 2013-05-23 (bug #4394)
  The global option "topdown" was not honored in PDF_begin_template_ext().

- 2013-05-22 (bug #4342)
  Fixed searchpath problems with the C mini samples on MVS.

- 2013-05-22 (bug #4387)
  PDFlib didn't work with Ruby 2.0 on Windows.

- 2013-05-22 (bug #4391)
  Resetting the transparency blending mode with "blendmode=None" didn't work.

- 2013-05-17 (bug #4377/feature #1230)
  Files attached with PDF_add_portfolio_file() were not associated with
  any document component in PDF/A-3 mode. Now they are implicitly associated
  with the whole document.

- 2013-05-16 (bug #4357)
  Automatically create a transparencygroup entry for the page if an image
  with a color key mask was placed. These are created from PNG and GIF
  images with a single transparent color value or PNG with a single
  transparent entry in the tRNS chunk. Strictly speaking this shouldn't
  be required since no real transparency is involved, but it significantly
  improves the screen display in Acrobat.

- 2013-05-16 (bug #4352/REOPENED)
  While the previous fix worked, it had been applied only to PDF_xshow(),
  but not PDF_fit_textline().

- 2013-05-13 (bug #4380)
  The table formatter could chop off some contents of a textflow cell in
  the last row. Now an error message is emitted if the Textflow cannot be
  squeezed into the cell according to the specified shrinking limits.


=============================
PDFlib 9.0.0p2 (May 08, 2013)
=============================

- 2013-05-08 (bug #4379)
  Replaced stray non-ASCII characters in the description text of the
  FOGRA15 and FOGRA23 standard output intents for PDF/X-3.

- 2013-05-08 (bug #4368)
  The final output file (as opposed to the temporary file) is now opened
  in PDF_begin_document() even with the "linearize" and "optimize" option
  to make sure that problems with opening the file are already diagnosed
  when starting a document instead of in PDF_end_document().

- 2013-05-06 (bug #4375)
  The global "usercoordinates" setting was not correctly honored in
  PDF_create_field(). 

- 2013-05-02 (bug #4360)
  XMP properties in the "pdfx" (PDF eXtended) namespace were rejected in
  PDF/A mode even if the corresponding extension schema description was
  present. As a side effect of this change incorrect namespace prefixes
  within PDF/A extension schema descriptions are now corrected.

- 2013-04-29 (bug #4372)
  SVG: fixed incorrect treatment of large numerical values in the scanner.

- 2013-04-29 (bug #4371)
  Reinstalled the former treatment of invalid Rational entries in TIFF
  images so that denominator=0 is again treated as 1 (e.g. to avoid
  unreasonable resolution values).

- 2013-04-22 (bug #4352)
  PDF_xshow() and PDF_fit_textline() with the "xadvancelist" option produced
  wrong output, wrong metrics and/or the inappropriate error message
  "Floating point number xtoo large" if the text contained text layout control
  characters of the following list:
  NBSP NNBSP ZWNJ ZWJ LRM RLM LRE RLE PDF LRO RLO

- 2013-04-22 (bug #4353)
  A misleading message "File 'xxx.PFB' does not seem to be an SVG file" was
  emitted if a FontOutline resource was configured for a font which was
  neither TrueType nor OpenType, and no corresponding AFM or PFM file was
  configured. Now the more appropriate message "AFM or PFM font metrics file
  not found" is produced.

- 2013-04-16 (bug #4350)
  A crash could occur if pCOS accessed an invalid UTF-8 sequence and neither
  CMaps nor cpxxxx host encodings were available.

- 2013-04-11 (bug #4347)
  Compressed stream data was truncated if the uncompressed stream input
  exceeded 4GB.

- 2013-04-11 (bug #4348)
  PDFlib builds without encryption support (PDF_FEATURE_SECURITY) didn't
  work.


===============================
PDFlib 9.0.0p1 (April 09, 2013)
===============================

- 2013-04-09 (bug #4344)
  In case of an ICC profile mismatch (e.g. CMYK profile instead of RGB) the
  error message didn't include the name of the profile.

- 2013-04-09 (bug #4342)
  Importing Tagged PDF documents into an untagged document without closing
  the documents resulted in the following exception in PDF_delete():
  "Illegal array index 1 in function pdc__vtr_at".

- 2013-04-09 (bug #4330)
  Fixed a crash when loading large TIFF images with
  (width*height*bpc*components)/8 > 4GB.

- 2013-04-08 (bug #4245)
  Switched the build process for the Ruby binding on Windows to MinGW to
  support Ruby 1.9 and above.

- 2013-04-07 (bug #4329)
  Deriving a PHP class from the PDFlib class could result in a crash.

- 2013-04-03 (bug #4333)
  Fixed a memory leak for TIFF images which are handled in raw pixel mode
  and have an orientation tag.

- 2013-03-27 (bug #4318)
  Modified the treatment of SVG viewports with percentage values.

- 2013-03-25 (bug #4327)
  Fixed a memory leak in PDFlib-only source code packages.

- 2013-03-21 (bug #4325)
  Fixed a problem with the calculation of matchboxes in a Textflow.

- 2013-03-21 (bug #4326)
  Fixed a problem with compiling source code packages on Linux 32-bit.


=============================
PDFlib 9.0.0 (March 14, 2013)
=============================

- Implements a variety of new features and options, see PDFlib Tutorial
  and API Reference for details.