A Blind Digital Watermarking for PDF Document

Qing Chen; Qi Wen Hu; Shao Kun Feng; Ze Fu

doi:10.4028/www.scientific.net/AMM.392.1006

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A Blind Digital Watermarking for PDF Document
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 392A Blind Digital Watermarking for PDF Document

A Blind Digital Watermarking for PDF Document

Abstract:

In this paper, a text blind watermarking is proposed and implemented for copyright protection. Based on the characteristics of PDF format, this algorithm uses character spacing coding throughout whole PDF document to embed watermark into it. Robustness and security is further increased by using synchronous coding, cycle encryption and majority decision. Watermark embedding and extracting are implemented under the software environment of VC++ 6.0, and performances are tested and analyzed. Experiments show that the algorithm has good transparency, large capacity and good robustness. It can apply to both of Chinese and English PDF documents.

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Periodical:

Applied Mechanics and Materials (Volume 392)

Pages:

1006-1009

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.392.1006

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Online since:

September 2013

Authors:

Qing Chen, Qi Wen Hu, Shao Kun Feng, Ze Fu

Keywords:

Character Spacing Coding, PDF Document, Text Watermarking

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