Translations:Hilfe:Empfehlungen beim Hochladen von Bildern/2/en

For photographic images, the choice is easy: these are pixel images, and while a completely loss-less format like PNG has some advantages over JPG, a low-compressed JPG (e.g. 98 % quality) is generally very good. Normally you should not convert a JPG to a PNG file—previous quality losses can not be recovered.