I'm sorry if that is a stupid question.

Yes you can! Trim your edible image to the size and shape you need. Remove the paper backing. Use some clear vanilla (not alot) on the back of your image and place it on the fondant. I usually precut my fondant, if possible. Hope this helps!
~Nancy

I'm sorry I'm just replying, I wasn't alerted that I had a reply. But anyways I have never used an edible image before. I really appreciate the info, thanks so much!

I sometimes find it troublesome to wet the back of the image completely enough without getting ANY on the front and destroying the lovely picture. I prefer to roll out another piece of fondant reeeally thin, spray it down with water, apply the image to that, cut it out (you do not need to pre-cut the image), and place it on the fondant-covered cake.

Ok, thank you for that tip!