What do you mean by "Image Signatures"?
Many images found on the internet are copyright, and if they have the artists signature on them then they cannot be removed.
Mark
How to remove unwanted image signatures? I always read a newsletters from download.com and know that such applications exist. But I do not remember the names of these applications.
Best regards.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic