pdfa/text_to_pdfa
Output text conforming to PDF/A-1b, taking care of color space and font issues.
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* Text to PDF/A:
* Output text conforming to PDF/A-1b, taking care of color space and font
* issues
*
* Required software: PDFlib/PDFlib+PDI/PPS 7
* Required data: font file
*/
package com.pdflib.cookbook.pdflib.pdfa;
import com.pdflib.pdflib;
import com.pdflib.PDFlibException;
public class text_to_pdfa {
public static void main(String argv[]) {
/* This is where the data files are. Adjust as necessary. */
String searchpath = "../input";
String outfile = "text_to_pdfa.pdf";
String title = "Text to PDF/A";
pdflib p = null;
int x = 30, y = 800;
try {
p = new pdflib();
p.set_parameter("SearchPath", searchpath);
/* This means we must check return values of load_font() etc. */
p.set_parameter("errorpolicy", "return");
check_pdflib_version(p, 7, 0, 4);
/* Output all contents conforming to PDF/A-1b */
if (p.begin_document(outfile, "pdfa=PDF/A-1b:2005") == -1)
throw new Exception("Error: " + p.get_errmsg());
p.set_info("Creator", "PDFlib Cookbook");
p.set_info("Title", title + " $Revision: 1.1.2.2 $");
/*
* Use sRGB as output intent since it allows the color spaces
* CIELab, ICC-based, Grayscale, and RGB
*/
p.load_iccprofile("sRGB", "usage=outputintent");
p.begin_page_ext(595, 842, "");
/*
* Load the font "LuciduxSans-Oblique" with embedding, since font
* embedding is required for PDF/A
*/
int font = p.load_font("LuciduxSans-Oblique", "unicode",
"embedding");
if (font == -1)
throw new Exception("Error: " + p.get_errmsg());
p.setfont(font, 20);
/*
* You might want to embed a PDF core font, e.g. "Helvetica". For a
* PDF core font, the font metrics are already built into PDFlib,
* but the font outline file has to be explicitly configured with
* the "FontOutline" ressource category, e.g.
*
* p.set_parameter("FontOutline", "Helvetica=HV______.pfb");
*/
/*
* We can use RGB text without any further color related options
* since we already supplied an output intent profile.
*/
p.setcolor("fill", "rgb", 0.7, 0.3, 0.3, 0);
p.fit_textline(
"Text with an RGB color conforming to PDF/A-1b:2005", x,
y -= 100, "");
/*
* Similarly, we can use Grayscale text without any further options
* since we already supplied an output intent profile.
*/
p.setcolor("fill", "gray", 0.5, 0, 0, 0);
p.fit_textline("Text with a Grayscale color conforming to "
+ "PDF/A-1b:2005", x, y -= 100, "");
/*
* For CMYK text we could use an ICC profile explicitly assigned;
* the code would be as follows:
*
* icc = p.load_iccprofile("ISOcoated.icc", "usage=iccbased");
* p.set_value("setcolor:iccprofilecmyk", icc);
* p.setcolor("fill", "iccbasedcmyk", 0.6, 0.6, 0, 0);
* p.fit_textline(
* "Text with a CMYK color conforming to PDF/A-1b:2005",
* x, y-=100, "");
*/
p.end_page_ext("");
p.end_document("");
}
catch (PDFlibException e) {
System.err.print("PDFlib exception occurred:\n");
System.err.print("[" + e.get_errnum() + "] " + e.get_apiname()
+ ": " + e.get_errmsg() + "\n");
}
catch (Exception e) {
System.err.println(e.getMessage());
}
finally {
if (p != null) {
p.delete();
}
}
}
/**
* Check whether the required minimum PDFlib version is available
*
* @param p
* the pdflib object
* @param major
* PDFlib major version number
* @param minor
* PDFlib minor version number
* @param revision
* PDFlib revision number
*
* @throws PDFlibException
* @throws Exception
*/
private static void check_pdflib_version(pdflib p, int major, int minor,
int revision) throws PDFlibException, Exception {
final int actualMajor = (int) p.get_value("major", 0);
final int actualMinor = (int) p.get_value("minor", 0);
final int actualRevision = (int) p.get_value("revision", 0);
/* Required minimum PDFlib version */
final int requiredVersion = major * 100 + minor * 10 + revision;
final int actualVersion = actualMajor * 100 + actualMinor * 10
+ actualRevision;
if (actualVersion < requiredVersion) {
throw new Exception("Error: PDFlib " + major + "." + minor + "."
+ revision + " or above is required");
}
}
}