Hi all. Is there a comprehensive listing of where XMP tags map to?
There's not really a simple list. It's mostly having to go through the various standards.
The IPTC Photo Metadata Standard (https://www.iptc.org/std/photometadata/specification/IPTC-PhotoMetadata) gives mapping between IPTC IIM and XMP (IPTC Core/Ext).
The Exif 2.31 metadata for XMP (https://web.archive.org/web/20180921145139if_/http://www.cipa.jp:80/std/documents/e/DC-010-2017_E.pdf) gives mapping between EXIF and XMP.
The Metadata Working Group Guidelines (https://web.archive.org/web/20180919181934if_/http://www.metadataworkinggroup.org/pdf/mwg_guidance.pdf) have more mapping, though thinking about it, I'm not sure that anything in there isn't already covered by the others.