An Existential Review on Text Watermarking Techniques

Nowadays, with the extensive use of internet all over the world, most of the government, public and private data are increasingly being published on internet. The protection of these online documents is the need of the hour and need to be dealt with urgently. Text watermarking is the technique which helps to protect the authenticity and integrity of text documents by inserting watermarks in the text. Text watermarking is an active area of research from several years. This paper presents a review of various text watermarking techniques described in literature. We also highlight the security issues like copyright protection, tamper detection and data hiding which need to be focussed for ensuring text security