Copyrighting images

[ChelleWSU]

I'm sure this has been discussed over and over, and I know I've seen this done, but I can't remember where I've seen it. I'm looking for a way to watermark an image so that it's not visible on the web, but if someone right-clicks to save it on their computer, the watermark would show up. Does anyone know a way to do that? Software maybe? Special code?

[Tweak4]

It can't be done... at least not in the manner you describe. You can embed copyright information in the visible image itself, or in the images meta-tags, or even use a digital watermark, but as far as I know there is no way to have the image not display visible copyright/watermark info while it's on the web and then have it magically appear if someone downloads it.
(Not to mention that this would be completely pointless, as a simple screenshot of the online version would still yield a watermark-free image)

[ChelleWSU]

Thanks - I didn't think of it that way.