Se:
http://www.protware.com - de tilbyder forskellige muligeheder.
Nedenstående er hentet fra deres "FAQ".
Can I protect my images?
Yes. If you choose to disable the right click in the encrypted file, visitors will not be able to right click and select 'Save image..' from the context menu (this will also disable the IE6 Image Toolbar). If you choose 'Save As' from the 'File' menu in Internet explorer, it will save the html file and all images and other files referenced in it. But if the file is encrypted, images and other files will not be saved.
You may also use the 'Disable Clipboard & Print Screen' option to prevent taking screenshots of your pages.
However, when someone browses your site, all images referenced in html files are first downloaded and then displayed. So all your images are somewhere on visitor's hard drive. They are not stored under their original names, but are still there and someone can find them, although that's not so easy and most internet users don't know how to do that.
For a complete image protection , you have to use Image Guardian - HTML Guardian add-on especially designed for advanced image protection. Note that Image Guardian is fully functional only in HTML Guardian Enterprise Edition.
A complete comparison between HTML Guardian Personal, Professional and Enterprise editions you can see here