I'm preparing some photos for entry in the OK State Fair this fall and came across some pictures I took in JPG large format in the first month or so after I got my DSLR. I might want to enter one or two but I'm not sure what to do since they came out of the camera at 72 dpi. In Photoshop (under image size, pixel dimensions) it says that the width is 3888, height is 2592. The document size says width 54 inches, height 36 inches, 72 pixels/inch. Do I just need to change the resolution to 300 ppi and keep the Resample Image box UNchecked? On the screen the image doesn't seem to change but the image size changes to a normal print size (roughly 12 x 8 inches), which I will then resize to 8 x 10 (if I'm right). Thanks!