


Here is the link and thank you azuravian. Solution: A previous user asked a similar question (for a similar reason) and u/azuravian created a python script for them. I am not even sure if this is possible - but thought I would ask. In a perfect world it would be similar to the FindImageResolution.py script (by maforget) - but instead find and save the image format in a custom field instead. But now I can't remember what I have to still do or how far I got! A while ago I started converting my collection to webp.
