This application allows you to sign your images. The sign is added directly to the image data. It doesn't use EXIF or stream file properties. The sign is invisible. The sign stays detectable after jpeg compression, scaling and cropping or for example PrintScreen&Paste.
SignMyImage allows you to insert your sign to the image and allows you to check if any image is signed or not. The sign can consists of letters, capitals, numbers, dashes and can be up to 10 characters long. Typical sign looks like "FK488x-h34".
SignMyImage adds your sign directly to the image data. It modifies picture intensity at few places slightly. The modification is so GENtle that it is invisible for a human eye. SignMyImage doesn't use EXIF(or other tags) or stream properties of image files to sign the image.
SignMyImage doesn't allow to sign already signed images.
Sign verification
SignMyImage allows you to check if any image is signed or not. SignMyImage doesn't need any addition information about the image to Detect the sign.
Sign properties
The sign is invisible for a human eye. Although if you subtract original and signed images, you can see some intensity changes.
