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

On Sat, Feb 5, 2022 at 9:48 AM Karl Pettersson wrote:

Attach metadata xml for the non-validating and validating example (extraced with `pdfinfo -meta | xmllint format -`) in the Github issue.

Here is a reference to the description element. Note that only description seems to be redefined, not title.

it's not redefined -- it's dropped. And this is ok. You can also check with dc:descriptionFOO dc:title rdf:Alt TITLE and again it's valid. But https://www.iso.org/obp/ui/#iso:std:iso:19005:-1:ed-1:v2:cor:1:v1:en and https://www.iso.org/obp/ui/#iso:std:iso:19005:-1:ed-1:v2:cor:2:v1:en:tab:1 suggest that dc:description and dc:title are of the same type, which is coherent with XMPSpecificationPart1.pdf as in https://github.com/adobe/XMP-Toolkit-SDK/tree/main/docs I.e. these are correct -- but Subject must agree with dc:description dc:description rdf:Alt dc:title rdf:Alt TITLE At least, this is what I understand. -- luigi