pdfa/xmp_extension_schema_with_type_pdfa2b updated
Demonstrate a complex XMP extension schema for PDF/A-1.
Download PHP Code Switch to Java Code Show Output Show Input (machine_extension_schema_2.xmp)
<?php
/*
* PDF/A extension schema with type:
* Demonstrate the use of a complex XMP extension schema as defined in PDF/A-1
*
* Create a PDF/A document and use the "metadata" option of begin_document() to
* supply an XMP file containing a complex XMP extension schema which requires a
* custom type definition.
*
* Required software: PDFlib/PDFlib+PDI/PPS 10
* Required data: XMP file
*/
/* This is where the data files are. Adjust as necessary. */
$searchpath = dirname(__FILE__,3)."/input";
$outfile = "";
$title = "PDF/A Extension Schema with Type";
$xmpfile = "machine_extension_schema_2.xmp";
try {
$p = new PDFlib();
$p->set_option("searchpath={" . $searchpath . "}");
/* This means we must check return values of load_font() etc. */
$p->set_option("errorpolicy=return");
/* Start a PDF/A document with an XMP file supplied, containing an XMP
* extension schema. The XMP metadata will be read from the file and
* embedded in the document. PDFlib will merge several internally
* generated entries into the user-supplied XMP, e.g. xmp:CreateDate.
*/
if ($p->begin_document($outfile,
"pdfa=PDF/A-2b metadata={filename=" . $xmpfile . "}") == 0)
throw new Exception("Error: " . $p->get_errmsg());
$p->set_info("Creator", "PDFlib Cookbook");
$p->set_info("Title", $title );
$p->begin_page_ext(0, 0, "width=a4.height height=a4.width");
$font = $p->load_font("NotoSerif-Regular", "unicode", "");
if ($font == 0)
throw new Exception("Error: " . $p->get_errmsg());
$p->setfont($font, 12);
$p->fit_textline("An XMP extension schema is read from an XMP file and " .
"the XMP metadata is embedded in the document.", 50, 400, "");
$p->end_page_ext("");
$p->end_document("");
$buf = $p->get_buffer();
$len = strlen($buf);
header("Content-type: application/pdf");
header("Content-Length: $len");
header("Content-Disposition: inline; filename=xmp_extension_schema_with_type_pdfa2b.pdf");
print $buf;
} catch (PDFlibException $e) {
echo("PDFlib exception occurred:\n" .
"[" . $e->get_errnum() . "] " . $e->get_apiname() .
": " . $e->get_errmsg() . "\n");
exit(1);
} catch (Throwable $e) {
echo("PHP exception occurred: " . $e->getMessage() . "\n");
exit(1);
}
$p = 0;
?>