Digital watermarking tool
Add a digital watermark to your images with this free tool.
Digital watermarksDigital watermarking is another option. It hides text, like a copyright notice, inside the pixels of the image itself. Only with the correct password can the hidden message be revealed. In this way, if someone copies your image directly and reposts it, you can prove ownership by retrieving the hidden message with your password.
Disclaimer: This is an educational tool and shouldn't be depended upon to protect your work from theft. Passwords are case sensitive. Re-saving an image as a JPEG or other lossy format, or editing the image in any way, can corrupt the digital watermarking of your message. Modified from original code: Stegger