[Poppler-bugs] [Bug 107182] Add support for reading PDF/A, PDF/X version from the information dictionary (glib backend)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107182

--- Comment #2 from Evangelos Rigas <e.rigas at cranfield.ac.uk> ---
(In reply to Albert Astals Cid from comment #1)
> Where is GTS_PDFA1Version mentioned? I can't seem to find it in the PDF spec.

If you looked in the PDF spec from the other bug, then cannot find it as it is
not there.
These are mentioned on the ISO standards, see
https://www.loc.gov/preservation/digital/formats/fdd/fdd000125.shtml for
example.
They have a link for the ISO, https://www.iso.org/standard/38920.html but you
have to buy it.

However, you can find the GTS_PDFA1Version and GTS_PDFXVersion in the code of
pdfx (a pdflatex package that adds support for writing PDF/A and PDF/X
compliant document using LaTeX).

You can see here
http://ctan.math.illinois.edu/macros/latex/contrib/pdfx/pdfx.pdf
Pages 68 and 70 where it exports the GTS_PDFA1Version or GTS_PDFXVersion to the
information dictionary.

Additionaly, you can find the possible values of GTS_PDFX here
http://www.npes.org/Portals/0/standards/pdf/GTS Registry-March09.pdf

Hope it helps!

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