protecting images in rev-cgi generated html

[Bill Marriott]

You can make it as hard and cumbersome and processing intensive as you 
like... But at the end of the day, the images are always "downloaded" to the 
client's web browser. Whether they right-click and crop, open their cache, 
hit the Print Screen button, or employ a dozen other techniques... those 
images cannot be secured in any meaningful way. A clause that restricts 
downloading effectively restricts them from being used on the web. More 
likely is they don't want you offering a "collection" that can be 
purchased/downloaded en masse.