There should be a limit on the file size and / or resolution of images uploaded by users.
Also, the crop widget sometimes fails to crop pictures correctly, typically on larger pictures. This causes incorrectly cropped profile pictures when displayed on conference websites.

We might want to:
- preprocess pictures to limit its resolution
- convert it into a format that is known to work with our image libraries.
- forbid uploading pictures that are too large, or pictures that cannot be processed for some reason.

Submitted by Elmer van Chastelet on 11 December 2024 at 14:24