Obfuscating images

Question

I want to distribute a few images and not allow others to see them unless they are using my program. My intention will be to use JPG files in which I will alter the header so ot

Answer 1

Why not just encrypt the images with a private key and distribute your public key to the people you want to view the images? much easier to distribute a public key than writing some custom software and distributing that. Don't forget; anything displayed on screen can be screen captured. The fact a custom-mangled JPEG can only be displayed with your app is no protection. Also don't forget; people can simply distribute your software with the mangled image.