Hello,
last week, one user of my Java-written jfig graphics editor asked
me about a pure-Java PDF export option and pointed me to the itext
project. I just hacked a simple class that interfaces jfig to itext
via the PDFGraphics2D approach - and basic rendering including all
line attributes and embedded images works pretty well.
However, there is one important problem. When exporting files that
contain Unicode characters outside the standard (0x00 .. 0xff) range,
namely the math symbols included in the JDKs lucida.ttf files, those
characters are lost. This is a little annoying, as the support of
math formulae would be the main advantage of the pure-Java approach
over the existing fig2dev-ghostscript toolchain.
Many of the itext tutorial examples demonstrate how easy it is to embed
Unicode characters (outside the 00 .. 0xFF range) into the PDF documents,
but none of them seem to use PDFGraphics2D or the Java way of font
handling ("SansSerif", "MonoSpaced", ...), which I need to re-use my
existing object rendering code.
Due to the way jfig currently formats equations - aligning boxes of single
characters - I would also prefer to keep the Lucida fonts instead of
getting them replaced with Helvetica and Times automagically. The font
metrics are too different, resulting in horrible formatting.
Therefore, I have the following questions:
* How do I convince itext to not replace the Lucida font(s) with the
Postscript/PDF equivalents?
* How do I get the PDFGraphics2D and/or DefaultFontMapper to embed
all required Unicode characters into the PDF file?
* I am aware of the licensing issues around the JDK Lucida fonts.
Do you know of any other truetype fonts that (1) are free, (2) can
be used with itext, and (3) include the math and symbol range of
the Unicode character set?
If you want to know why I would like to embed the Lucida fonts,
check out the original on-screen rendering (screenshot) and the
resulting itext-generated PDF. I uploaded the files to a hidden
directory on my jfig project page:
tams-www.informatik.uni-hamburg.de/applets/jfig/itext/
Please answer via mail, as I am not (yet) subscribed to itext-questions.
Thanks in advance,
Norman
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