GPT is telling me lies. Commands it gives don't work.
I want to add a tag to a couple of hundred pdf files before importing to calibre. a custom tag I suppose that is. Just like when you add tags within calibre with whatever words you like.
But adding tags without a value given me by gpt results in no tag showing in calibre
Adding tag'with value' as given by gpt has exiftool reporting an error; the tag is not defined.
I've tried a few variations but I can't get it to work. It can be done?
Exiftool can't write a custom tag without a definition telling it how to write it.
I do recall someone attempted to do so in this post (https://exiftool.org/forum/index.php?msg=81567) but there was some problems. Part of it was that Calibre was using XMP qualifiers, which exiftool does not write.
Do you have a file that is filled out correctly that you can share? If not publically,if you can save it on Dropbox/GoogleDrive/etc and send me the link in a DM, I'll take a look and see what can be done.