Thread:Felinoel/@comment-5979234-20141217074812/@comment-5961377-20141217081741

.png images are preferred because they are usually of higher quality. Converting the .jpg images you already uploaded to .png will only inflate the file size, and possibly even deteriorate the image quality. I think you should just keep them.

.jpg images are much, much smaller in size and are still of decent quality, imo.