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I am trying to validate the XMP Metadata that are contained in PDF and PDF/A files. Unfortunately, it proved very hard to find the actual XSDs for most namespaces. Is there an official resource pool from Adobe where I could find them?

In special, I am looking for these namespaces:

http://www.aiim.org/pdfa/ns/id/
http://purl.org/dc/elements/1.1/
http://ns.adobe.com/xap/1.0/
http://ns.adobe.com/xap/1.0/mm/
http://ns.adobe.com/pdf/1.3/

Many thanks in advance for all hints.

Lonzak
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philip
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1 Answers1

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Missing in the main adobe portal (https://developer.adobe.com/xmp/docs/XMPSpecifications/) but is still accessible here https://archimedespalimpsest.net/Documents/External/XMP/XMPSpecificationPart1.pdf

Nikolay
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