What File Type Should I Use to Submit My Images? For optimal printing, your image files should be submitted in JPEG (.jpg or .jpeg) format with MAXIMUM quality. To order Photographic Prints, click here. Related articles What File Resolution Should I Use for Photo Prints? What is the Recommended Image Resolution for Framed Fine Art Prints? What Edge Options Do You Have for Canvas Wraps? Do You Offer Sizes Other Than Those Listed? What Type of Paper is Used for Photo Prints?