International Journal of Frontiers in Sociology, 2020, 2(1); doi: 10.25236/IJFS.2020.020101.
Weijuan Zhao1,*, Hu Guan2, Shuwu Zhang3
1. College of Information and Communication, Communication University of China,Beijing 10033, China
2. Digital Content Technology and Service Research Center, Institute of Automation,Chinese Academy of Sciences, Beijing 100080, China
*[email protected]
Aiming at the problems of illegal copying, malicious tampering, information leakage, copyright disputes and other issues caused by the convenience of the Internet, a watermarking algorithm based on the PDF document structure was developed, a watermarking algorithm model based on the PDF document structure was established, and a DES algorithm was used to encrypt the watermark. Based on the research of the physical structure and logical structure of the PDF document, the algorithm of modifying the color attribute value of the text to embed the watermark information is proposed. Experimental results show that the algorithm achieves information hiding and meets the requirements of digital copyright protection, has good security, and can resist multiple attacks.
PDF document, DES algorithm, watermark, color attribute value，information hiding
Weijuan Zhao, Hu Guan, Shuwu Zhang. Research and Implementation of Text Watermarking Technology Based on PDF Document Structure. International Journal of Frontiers in Sociology (2020), Vol. 2, Issue 1: 1-9. https://doi.org/10.25236/IJFS.2020.020101.
[1] Liu Haohao, Zhang Ru. Review of Research on Text Digital Watermarking Technology Journal of Southeast University,2007，37(zl):225-230.
[2]Brassil J, Low S, Maxemchuk NF, et al. Electronic marking and identification techniques to discourage document copying [J]. IEEE Journal on Selected Areas in Communications. 1995, 13(8):1495-1504.
[3]Brassil J, Low S, Maxemchunk NF. Copyright protection for the electronic distribution of text documents [J]. Proceedings of the IEEE 1999, 87(7):1181-1196.
[4]Sun XM, Luo G,Huang HJ. Component-based digital watermarking of Chinese texts [C]. Proceedings of the Third International Conference on Information Security. Shanghai, China, 2004, 85:76-81.
[5] Wang Bingxi, Chen Qi, Deng Fengsen.Digital Watermarking Technology [M] .Xi'an: Xi'an University of Electronic Technology Press, 2003.
[6]Bennett K. Linguistic steganography: survey, analysis, and robustness concerns for hiding information in text [EB/OL]. Center for Education and Research in Information Assurance and Security, Purdue University, West Lafayette.2004.
[7]Mikhail Atallah J, Victor Raskin, Christian F Hempelmann. Natural language watermarking and tamper proofing[C]. The 5th International Information Hiding Workshop. Berlin,2002: 196-212.
[8]Wu M, Liu B.Data hiding in binary image for authentication and annotation[J]. IEEE Transactions on Multimedia,2004, 6(4):528-538.
[9] Zhao Xingyang, Sun Jiyin, Li Linlin.A Text Watermarking Algorithm Based on Character Step Edge Adjustment [J] .Computer Applications, 2008, 28(12):3175-3178.
[10] Liu Youji, Sun Xingpeng, Luo Gang.A New Information Hiding Algorithm Based on PDF Document Structure [J] .Computer Engineering,2006,32(17):230-232.
[11] Zhong Zhengyan, Guo Yanhui.Digital Watermarking Algorithm Based on PDF Document Structure [J] .Computer Applications,2012,32(10):2776-2778.
[12]Qingcheng Li, Jin Zhang, Zhenhua Zhang, et al. A Chinese text watermarking based on statistic of phrase frequency[C]. 2008 International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIHMSP). Harbin, 2008, 8. pp:335-338.
[13]Paulo Borges, Ebroul Izquierdo, Joceli Mayer. Efficient side information encoding for text hardcopy documents[C]. 2007 IEEE Conference on Advanced Video and Signal Based Surveillance (AVSS). London, UK, 2007, 9. pp.552-557.