Text watermarking algorithm using structural approach

Information on the web has become a production factor. Author of a unique text is unaware of its download, assessment, revision or reuse. At this juncture authorship management becomes a serious issue for digital text. Our work focuses on watermarking and security requirements for a document to be secure against various known attacks. Embedding of watermark is done without modifying the appearance of the text. Watermark robustness is enhanced via text meaning and the edit distance method Rather than getting the benefits of information technology, the world faces threats of violations of copyright, privacy. These issues have been addressed for image, audio and video by researchers in the past, but the protection of copyright for plain text has been neglected In this paper, we have proposed a novel zero-watermarking algorithm for authentication and copyright protection of text documents.