Board Thread:Support Requests - Getting Started/@comment-34981175-20190130150728/@comment-34981175-20190130171931

Anonminati wrote: By default, MediaWiki has a maximum image dimension in pixels to allow before thumbnail generation breaks and the file can't be uploaded. I believe the current maximum dimensions are 3500×3500. The full sized image on that link is 7720 X 4409. I'd recommend resizing the image to 25%, which should still upload a fairly generously large image while getting under that thumbnail limit. Okay, but how? How do I resise the image? I'm uploading a version of the original file that I saved onto my computer, but I still don't know how to resize to an acceptable size.

So if you could please explain to me the process.