Hello!
I am in touch with a museum that is thinking of uploading images to Commons. They are a bit uncertain about uploading high resolution, but I told them the resolution they need to upload just needs to be good enough for illustrating articles without being pixellated. The thing is, I am unsure about the minimum size of such an image. I tried poking around the instructions but didn't find a direct answer.
Do you know which size is "the minimum" that can be accepted on Commons?
Thanks a lot for your help!
Warm wishes,