You cannot 'restrict' downloading of images. As Hawke points out - once its viewed, it can be saved. It is called a web cache and every browser uses it. The only way to avoid that would be for the browser to employ encryption of the cache... and then there is still screen capture... ;) ... and then there is digital photography... ;> ...

C makes it easy to shoot yourself in the foot. C++ makes it harder, but when you do, you blow your whole leg off.

 -- Bjarne Stroustrup

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