The study on digital watermarking based on word document

Digital watermarking as a new technology of copyright protection can effectively protect copyright of digital products. Today, the research of digital watermarking mainly focuses on image, video and audio. This paper designs and implements a text digital watermarking algorithm based on the word document through study several technologies of text digital watermarking. It realizes the watermark embedding by modifying the font of the letters in word document. Finally, it analyzes and proves the feasibility of the algorithm through a series of test.