Did you know that watermarking is one of the earliest forms of document security?
Some of the first known examples are thought to trace back to paper makers in Fabriano, Italy, where in 1282 a Greek cross with circles was embossed on the paper. These early watermarks often had some kind of religious significance, but Renaissance paper houses soon recognized that they could act as a kind of trademark for their businesses.
Today, we still watermark our documents, whether they are physical or digital, in an effort to identify the document owner, classify the document or maintain some level of traceability. There are various ways of watermarking a document, ranging from a discreet mark to very obvious markings. These watermarks might be as simple as a single word, or include more detailed information such as the name and email address of the document recipient.