On 2015-06-23 at 06:07:13 +0200, luigi scarso wrote: > > Hi, > > at > > > > http://tracker.luatex.org/view.php?id=434 > > > > Hans wrote > > > > > pdf/a demands a cidset but we will forget about this till we find a > > > proper example > > > > > > there is still some reported problem with some stream objects not > > > properly being formatted cf. pdf/a but it is not clear what is > > > going on there > > > > This message is now five years old. Any new perceptions? > > > > I'm using a TrueType font (CharisSIL) and one of five PDF/A validators > > complains about a bad CIDSet. > > > > I created a small PDF file which only contains the string "abc", > > extracted the TTF from the PDF file, and disassembled it with TTX. > > Then I assembled the CIDSet manually according to the instructions > > given in the PDF/A-1 specification (ISO 19005-1). I've got the same > > result as LuaTeX, hence it's unclear to me what's going wrong. > > > > The PDFtron > > > > https://www.pdftron.com/ > > > > validator sais > > > > <Error Code="e_PDFA356" Message="CIDSet in subset font is incomplete" > > Refs="95, 101"/> > > > > I tend to believe that the validator is wrong. On the other hand > > PDFtron offers software which creates PDF/A files and I can't imagine > > that their validator complains about their own products. > > > > Did anybody investigate? The nasty thing is that PDF/A is for long > > term preservation and any file we create today has to comply with the > > standard unconditionally. And for us TeX users, the fact that there > > are zillions of invalid PDF/A files around just because old versions > > of the Acrobat preflight tool ignored most errors, is not an excuse. > > We should do better. > > > > >From the results of my own investigations I deduce that LuaTeX > > provides a standard compliant CIDSet. Maybe different people > > interpret the standard in a different way. But it would be nice to > > know whether somebody else investigated this issue already. > > > > Regards, > > Reinhard > > > > > which pdf/a ?
PDF/A-1b > https://pdfbox.apache.org/ > > says > """ > Preflight > Validate PDF files against the PDF/A-1b standard. > """ PDFbox was one of the validators I used. It didn't complain. There is probably a newer release. Somebody said on a mailing list that he submitted a patch which adds object numbers to error messages. Sounds very reasonable and useful. BTW, I validated both validators before. http://ms25.no-ip.info/pdfa/validate-pdftron.html http://ms25.no-ip.info/pdfa/validate-pdfbox.html I also used the online validators http://www.validatepdfa.com/online.htm and http://www.pdf-tools.com/pdf/validate-pdfa-online.aspx Finally I asked Ross Moore to check my file with Acrobat Pro v.11. Only PDFtron complained about an uncomplete CIDSet. Regards, Reinhard -- ------------------------------------------------------------------ Reinhard Kotucha Phone: +49-511-3373112 Marschnerstr. 25 D-30167 Hannover mailto:[email protected] ------------------------------------------------------------------
