The case of the missing COMMENT (DOpus vs. ExifTool, round 10?)

[mazeckenrode]

@Jon

No, the limit applies no matter which tool writes it.

Then how to explain the files in the 7-zip I attached to my initial post in this thread? The file “1 DOpus\2020-12-15 23;59;59 - General - xFGHI-00001 Invoice 1234567890 - 07 (513 ch).png” has a 513-character string in COMMENT, which displays via tooltip, the Set Metadata dialog, and the Metadata panel (ExifTool confirms that this string is stored in both XMP:UserComment and EXIF:XPComment, and same string has also been written to all metadata fields corresponding to DESCRIPTION, SUBJECT and TITLE in DOpus — see the associated JSON file in the archive).

My only guess is that when you write it in Opus, you’re actually setting the "Image Description" rather than the comment, which is a different field.

As just stated, I am typically writing the same data to ALL metadata fields corresponding to COMMENT, DESCRIPTION, SUBJECT and TITLE in DOpus. See JSON.

@auden

Exiftool tells me that imagedesc field has been copied into the following fields.

Thanks. I previously posted about my experimentation with writing as much metadata as possible via DOpus and noting which actual metadata fields the data goes to — see Set Metadata inconsistent results.

Exiftool forms no part of my image workflow.

I find it very helpful, especially since there are a handful of metadata fields I use which DOpus won’t deal with.