A watermark is text or a graphic that, seemingly, appears behind the main document. You’ve probably seen them used to display status information or possibly warnings, such as draft and confidential.

Three and a half centuries after Rembrandt’s death, questions persist about his creative process ... seek to document the various states, watermarks have proved an invaluable tool, allowing ...

Three and a half centuries after Rembrandt’s death, questions persist about his creative process ... seek to document the various states, watermarks have proved an invaluable tool, allowing ...