Watermarking technologies for security-enhanced printed documents
Taizo Anan, Kensuke Kuraki, Shohei Nakagata · Fujitsu Scientific and Technical Journal · 2007
Sensitive information is not leaked exclusively through computers and networks. In fact, many incidents involve printed documents. It is now possible to protect confidential and private information by applying the following countermeasures when printing documents: • Copy control by applying a watermark to restrict copying and forgery • Watermarks for traceability, including background texture watermarks and font embedded watermarks These two countermeasures can provide total document security by complying with existing security systems and solutions.