Digital watermarking is a technique which allows an individual to add hidden copyright notices or other verification messages to digital data. The technique takes its name from watermarking of paper or money as a security measure. This book seeks to the research and exploration of a new dimension in the field of Text document watermarking, i.e. Text watermarking of e-text documents in an object based environment. A Robust Watermark is more resilient to the tempering/attacks that a text document had to face like compression, cropping, geometric attacks etc. This work takes an e-text...