Jason,
It is very hard to protect images & still show a Great item. To Repop an image/sign/globe/can/etc the Layout is the most important, then the Graphic Details, Colors & Fonts.
Even IF Jim Disabled the Right Click for a easy Save This Image, Anything on the Monitor can be photographed then saved into a Graphics program.
By marking an image as I have done here, they can still snag the image to Repop, but will take a Non Graphic artist considerable amount of time to remove the Transparent Text. Any markings place near edges [such as Doc does to his images] can be Cropped out.
