It can be a text, an image, or a logo which indicates certain information about the owner of the document, such as websites, name of a company, name of a person, an organization name, etc. It helps to prevent an image or document from being copied or allow others to know where the document is copied from and who owns the right. It is very important for maintaining the copyright of any documents. Traditionally, a water coated stamp or a Dandy Roll was made to roll over the paper during its elaborate manufacturing. These superimposed patterns are called WATERMARK. Many a times you might have seen some transparent images or texts scribbled underneath your documents.
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