Thread:Remonte/@comment-6532078-20130913123624/@comment-6532078-20130913150157

Don't worry ^^ Because of the quality (in this field, .png >.jpg). .jpg compresses the image to lower its size, but with the loss in quality as a result. Also, even if .jpg is of very high quality, when looked as a thumbnail on wikia, it becomes pixilated, so even if all you do with the file is saving it in different format (and on the first sight, they look the same), it may make huge difference in the article. One Piece Wiki shows an example (and the pictures are the same in full size haha) :D