<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Jun 23, 2015 at 3:25 AM, Reinhard Kotucha <span dir="ltr"><<a href="mailto:reinhard.kotucha@gmx.de" target="_blank">reinhard.kotucha@gmx.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">Hi,<br>
at<br>
<br>
<a href="http://tracker.luatex.org/view.php?id=434" rel="noreferrer" target="_blank">http://tracker.luatex.org/view.php?id=434</a><br>
<br>
Hans wrote<br>
<br>
> pdf/a demands a cidset but we will forget about this till we find a<br>
> proper example<br>
><br>
> there is still some reported problem with some stream objects not<br>
> properly being formatted cf. pdf/a but it is not clear what is<br>
> going on there<br>
<br>
This message is now five years old. Any new perceptions?<br>
<br>
I'm using a TrueType font (CharisSIL) and one of five PDF/A validators<br>
complains about a bad CIDSet.<br>
<br>
I created a small PDF file which only contains the string "abc",<br>
extracted the TTF from the PDF file, and disassembled it with TTX.<br>
Then I assembled the CIDSet manually according to the instructions<br>
given in the PDF/A-1 specification (ISO 19005-1). I've got the same<br>
result as LuaTeX, hence it's unclear to me what's going wrong.<br>
<br>
The PDFtron<br>
<br>
<a href="https://www.pdftron.com/" rel="noreferrer" target="_blank">https://www.pdftron.com/</a><br>
<br>
validator sais<br>
<br>
<Error Code="e_PDFA356" Message="CIDSet in subset font is incomplete" Refs="95, 101"/><br>
<br>
I tend to believe that the validator is wrong. On the other hand<br>
PDFtron offers software which creates PDF/A files and I can't imagine<br>
that their validator complains about their own products.<br>
<br>
Did anybody investigate? The nasty thing is that PDF/A is for long<br>
term preservation and any file we create today has to comply with the<br>
standard unconditionally. And for us TeX users, the fact that there<br>
are zillions of invalid PDF/A files around just because old versions<br>
of the Acrobat preflight tool ignored most errors, is not an excuse.<br>
We should do better.<br>
<br>
>From the results of my own investigations I deduce that LuaTeX<br>
provides a standard compliant CIDSet. Maybe different people<br>
interpret the standard in a different way. But it would be nice to<br>
know whether somebody else investigated this issue already.<br>
<br>
Regards,<br>
Reinhard<br>
<span class=""><font color="#888888"><br></font></span></blockquote></div><div class="gmail_extra"><br></div>which pdf/a ?</div><div class="gmail_extra"><br clear="all"><div><a href="https://pdfbox.apache.org/">https://pdfbox.apache.org/</a><br></div><div><br></div><div><div>says</div><div><div>"""</div><div>Preflight</div><div>Validate PDF files against the PDF/A-1b standard.<br></div></div></div><div>"""</div><div><br></div>-- <br><div class="gmail_signature">luigi<br></div>
</div></div>