Quote Originally Posted by Nomadic View Post
I don't recall anywhere where it says it has to be jpg. My entries are all png
Quote Originally Posted by Gamerprinter View Post
The minimum criteria for the final map is at least a 100 ppi JPG sized at 24 inches by 36 inches (at least 2400 x 3600 pixels).
It said in the challenge post. I'm not really that fussed, like you I usually use PNG format. JPG does compress the file size down though. The same image is 4Mb in PNG.

Any comments on the suitability of the map for printing? I don't know what sort of printing GamerPrinter uses, but I know there can be issues matching colours with lithoprints if you don't use certain pallettes. I've tried with a colour laser printer and it looks okay.