Ok I have a photo that is 59.333inches x 39.556 inches and 72 ppi. I am putting this on a disc for someone to get a 16x20 print made. My question is how in the world do I get it cropped at the 16x20 size???? UUUUGGGGHHHHHHHH So frustrated!!!!! Been trying for days now.....PLEASE HELP!?!?!?! Thanks for your help!!