[NTG-context] XMP metadata schema yields invalid PDF/A

[Karl Pettersson]

Hi

PDF/A files generated using ConTeXt fail validation with veraPDF, and
the reason seems to be that the dc:description metadata is defined with
the wrong type in the embedded XMP extension schema.

https://tex.stackexchange.com/questions/632380/generate-pdf-a-with-context

https://github.com/veraPDF/veraPDF-library/issues/1224

I can reproduce the problem using TeX Live 2021 (MkIV 2021.03.05). The
definition seems to be controlled by this code.

https://source.contextgarden.net/tex/context/base/mkiv/lpdf-pua.xml?search=rdf#l81

Regards

-- 
Karl Pettersson
Uppsala, Sweden

https://static-dust.klpn.se/