No, the only way the image can be displayed by the browser is for it to be downloaded. It goes into the browser's cache of files - a subdirectory, whose location depends on the browser concerned. (On Windows NT systems and Internet Explorer, this tends to be a subdirectory of the Profiles folder, which is exactly analogous to the /home/username/ folder in Unix).
So, effectively, all you'll ever be able to do, is prevent the user saving the files anywhere else on their drive system - and even then, only from within the browser. there's nothing to stop them going into their browser's cache and moving or copying the images into a destination of their choice.
|