Hi,
I already read a discussion about "CIDset in subset font is incomplete"
validation errors on PDF/A documents generated by FOP. The April, 2010
discussion was related to FOP 0.95 and a CIDSet bug was obviously fixed
in FOP 1.0, but I still got these errors on almost all PDF/A documents
I've generated with FOP 1.0.
I am not sure how to actually fix this, but debugging the source code,
I've at least found the reason for the problem, I am however not sure if
the glyph subset selection or the CIDSet generation is wrong.
The problem is when using a font with combined diacritic marks (e.g.
Junicode, http://junicode.sourceforge.net/). When rendering a simple PDF
containing just the character 'ü', the embedded font will contain the
glyphs for space, '-', 'ü', '¨' and 'u'. I'm not sure where the space
and the hyphen come from, but the mismatch is caused by the additional
glyphs '¨' and 'u', because these are not counted when generating the
CIDSet field.
I hope someone can come up with a suggestion on how to fix this, since
it is vital for our project to create standard conform PDF/A files and
this is the last problem I'm struggling with.
Regards,
Tor
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