EXIF or XMP tag for person who took photo vs person who edited it

[Androne]

Hey guys,

Does anyone know if there exists an EXIF or XMP tag to indicate the person who edited the photo in post-processing software? Up to this point, I've used the EXIF:Artist, XMP:Artist, and XMP:Creator tags to indicate the person who took and edited the photo. I now have to tag some photos where the photographer and editor are different people, and I'm not sure what tags to use.

A quick look through the EXIF and XMP tags doesn't reveal anything obvious I should use (like some sort of tag named "Editor"). Will the three tags above allow me to enter more than one value?

[Phil Harvey]

EXIF:Artist supports multiple values (sort of).  The MWG recommendation suggests this using a semicolon-space separator.  And you could add a description of you wanted.  For example:

exiftool -exif:artist="Photographer: Joe Black; Editor: Jane White" ...

or, equivalently using the -use mwg option (which turns EXIF:Artist into a List-type tag according to the MWG recommendation):

exiftool -use mwg -exif:artist="Photographer: Joe Black" -exif:artist="Editor: Jane White" ...

- Phil