xmpMM Specification

[blue-j]

I have found just about anything I can about the xmpMM namespace.  Nowhere have I found anything close to as many fields as ET supports:

https://exiftool.org/TagNames/XMP.html#xmpMM

Can anyone guide me to the Rosetta Stone here?  I have the attached...  Is there something better?

- J

[blue-j]

PS, I do own the latest ISO spec for XMP, and it has.... 6 fields for xmpMM???

- J

[Phil Harvey]

I don't have time to search for documentation right now, but it could be that it doesn't exist.  Adobe is well known to write undocumented XMP tags, and I will add them to ExifTool as I obtain samples of them.

- Phil

[milchtaich]

The ISO standard is only part 1 of Adobe's XMP Specification. Part 2 of that specification (last version: August 2016) includes xmpMM fields additional to the six included in part 1. These, in turn, are only a small subset of the fields encountered with in the wild.

Igal Milchtaich

[blue-j]

Thanks!  Are you referring to this?

https://www.iso.org/standard/57422.html

Seems like it may not be the same as what you're talking about?

- Jeff

[milchtaich]

I'm referring to "Part 2, Additional Properties", which is linked to on this page: https://www.adobe.com/devnet/xmp.html.

[blue-j]

I do happen to have that document, but Adobe took all the XMP spec docs down so people would have to go to the ISO.  All links are broken now.

Thank you for your kindness!  : )

- J

[Phil Harvey]

ISO sucks

[milchtaich]

In case it helps anyone, the three-part specification is still available here: https://github.com/adobe/XMP-Toolkit-SDK/tree/main/docs.

[blue-j]

ISO sucks

Yes, I was quite... displeased to fork out $175 USD for Part 1.