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latex3 / pdfresources

LaTeX PDF resource management
LaTeX Project Public License v1.3c
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Metadata item "pdfaid:rev" causes non-conforming PDF/A files #33

Closed drs-p closed 2 years ago

drs-p commented 2 years ago

The file "hyperxmp-patches-tmp-ltx.sty" defines a metadata item "pdfaid:rev", according to a source code comment to support PDF/A-4. However, this metadata item is undefined (and hence forbidden) in PDF/A-1, A-2 and A-3, so the current code leads to non-conforming pdf output. In fact, even the pdf documents in this repo, which claim to conform to PDF/A-2b, are rejected by validation tools such as VeraPDF and 3-Heights because of this issue. Removing the definition of pdfaid:rev produces valid PDF/A files.

u-fischer commented 2 years ago

Thanks, I have adapted the code so it inserts pdfaid-rev only for pdf/A-4.