How can I make sure my photoes are not stolen from flicker?

Question

Is it possible to embed some sort of invisible code in the photoes or something that can be used to search for my own photoes on the internet to make sure no one steals my photoes from flicker ?

Answer 1

See link below on how to stop people downloading your  photos.

http://flickr.com/account/prefs/download...

Answer 2

i had to yous flicker once for school there not stealling anything though