Document marking technique based on both line and word shifting
Jie Yang, Zhang Min-rui · Journal of Xi'an University of Post and Telecommunications · 2006
A text document typically consists of a collection of regular structures such as words,lines,and paragraphs.In this paper we exploit this property to watermark formatted text documents by shifting slightly certain lines and words in order to discourage illicit distribution.We propose the pretreatment method that makes the distance between the shifting lines and its adjacent control lines holds fixed,Based on this method,we can use the document profiles directly for detection without any message.The proposed method has high detected probability and strong robust.It is important that this method of marking embeding and detecting is not only simple but also effective.