Security watermarks to prevent forgery and discourage copying.There are generally two types of watermark in common use: Its use was then extended to watermarking banknotes, postage stamps, bonds, and so on for authentication purposes – to prevent forgery or counterfeiting of printed documents. The very first watermarks were used by paper makers as a branding image authenticating the manufacturer. The term ‘watermark’ comes from the process of pressing a design into wet paper and letting it set. A watermark may be visual / visible or invisible / hidden to the naked eye. That way, even when they’re part of a bigger picture, these images preserve their original copyright protection. Take for instance when you want to make a photo collage, each individual image can have a distinct watermark. A watermark is text, image or other information that is embedded or layered onto printed material or digital content.
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