"If you can see it, there is always a way to steal it."
Make your users not want to steal it.
The fingerprints themselves could contain information that the subscriber would not want to share with even his close friends, such as his credit card number.
Protect Pictures with CatchLock
CatchLock is a subscription service that performs lightning-fast image fingerprinting. It is ideal for digital media that is delivered to the subscribers via internet. All images are stamped on-the-fly with the subscriber's information, right before they are transmitted from the web server. A copyright statement or a watermark with your company logo can be added as well. For persons who have not yet subscribed to your service, it's also possible to have CatchLock stamp the images with "SAMPLE", send a low-resolution copy, or display a message requesting the user to log-in. CatchLock can even be configured to transmit preview-quality images when a search engine such as Google is indexing your site. This results in undefaced thumbnails being shown when someone is searching using Google Images, but the image resolution (quality)
is terrible when this preview image is displayed in its normal, full-screen size. Since there is no software to install, CatchLock will work on almost any type of a server, even shared hosting servers with no administrative access! CatchLock is also nonobtrusive; the images can be uploaded, organized into folders, and manipulated exactly the same way you as you are doing it now.
CatchLock will automatically process any images found within a folder that you specify.
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