User:SOTO/Forum Archive/The Panopticon/@comment-5442547-20130723162509/@comment-188432-20130902161022
From Tardis Wiki, the free Doctor Who reference
In answer to SpaceTimeWiggles, photos are fine so long as they are clearly legible, and they otherwise obey these rules:
- photos and screenshots must be jpgs or pngs — not any other format
- images should be no narrower than 420px
- infobox images must clearly illustrate their subjects at 420px widths
- files must be appropriately licensed
As revealed upthread, the "appropriate license" here is {{BF credits}}, which you'll have to manually enter into the Special:Upload field next to the words "Categorise your image here".