Greetings to Bruno and the iText community,
My question is a bit complicated, so please bear with me as I explain
what my issue is. I don't think my particular problem has been
answered on the mailing lists, due to the fact that my situation is
rather special.
I've been using iText in my program (TextCite, http://textcite.sourceforge.net
) for several years now, in order to export text in PDF and RTF
formats. My program, as designed, is able to output PDFs with text
from nearly any UTF-8 block, except CJK. My program currently uses
iText 1.4.5, although I am in the process of updating it to use the
2.1.7 version.
Because my program is intended for use on any platform with Java
installed (including Linux of various flavors), I cannot count on the
user having Unicode fonts with all the necessary character blocks.
So, I have embedded the GNU free fonts (FreeSerif, FreeSans and
FreeMono) in my program (i.e. inside the Jar file). When I create a
PDF, I read the font file and create a new embedded font, calling the
routine BaseFont.createFont(String name, String encoding, boolean
embedded, boolean cached, byte ttfAfm[], byte pfb[]). Note that I
have to create and pass the ttfAfm byte array because the fonts are
stored inside my program's Jar file, and not in the filesystem.
Unfortunately, despite the fact that the GNU fonts contain the
necessary CJK characters, my PDFs come out with blank spaces where the
CJK characters ought to be.
I have included the iTextAsian.jar and the iTextAsianCmaps.jar
libraries in my classpath, along with iText.jar, as suggested in the
Examples online.
I know that iText isn't choking on the CJK characters, because I can
export to RTF and all the characters appear in the resulting file.
So, it's *just* PDF output that is doing something funny with CJK.
So, the basic question is: am I doing something wrong? What do I need
to change? I include a snippet of sample code, that shows how I am
create Chunks which I then add to my PDF file.
Thanks for any help,
Cheers,
Erik Norvelle
=============== snip ===================
/**
* Recursively parse a given text into Chunks, with each Chunk given
the font styling
* appropriate to it, based on the HTML tags in the text.
* @param text The text to parse into Chunks
* @param font The current font to apply
* @param phrase The currently existing Phrase to be added to.
* @return The completed Phrase, made up of formatted Chunks.
*/
protected Phrase chunkText(String text, Font font, Phrase phrase) {
Matcher m = tagPattern.matcher(text);
if (m.matches()) {
// Separate out the text and the tag
String currFontText = m.group(1);
String tag = m.group(2);
String remainderText = m.group(3);
phrase.add(new Chunk(currFontText, font));
int family;
try {
String fontFileName =
font.getBaseFont().getTTFileName();
if (fontFileName.contains("Mono")) family =
Font.COURIER;
else if (fontFileName.contains("Sans")) family
= Font.HELVETICA;
else family = Font.TIMES_ROMAN;
} catch (Exception e) {
family = Font.TIMES_ROMAN;
}
// Depending on the tag, adjust the font styling.
// UnicodeFontFactory is my custom code for getting a Font object
corresponding to the
// GNU Free Fonts, which are embedded in the PDF.
if (tag.equals("<i>"))
font = UnicodeFontFactory.getFont(family, font.getSize(),
font.getStyle() | Font.ITALIC);
else if (tag.equals("<b>"))
font = UnicodeFontFactory.getFont(family, font.getSize(),
font.getStyle() | Font.BOLD);
else if (tag.equals("<u>"))
font = UnicodeFontFactory.getFont(family, font.getSize(),
font.getStyle() | Font.UNDERLINE);
else if (tag.equals("</i>"))
font = UnicodeFontFactory.getFont(family, font.getSize(),
font.getStyle() & ~Font.ITALIC);
else if (tag.equals("</b>"))
font = UnicodeFontFactory.getFont(family, font.getSize(),
font.getStyle() & ~Font.BOLD);
else
font = UnicodeFontFactory.getFont(family, font.getSize(),
font.getStyle() & ~Font.UNDERLINE);
// Recurse to handle the rest of the text remaining
phrase = chunkText(remainderText, font, phrase);
}
else
// If we're at the end of the text, and there's no more tags, just
add a final Chunk to the phrase.
phrase.add(new Chunk(text, font));
return phrase;
}
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