Abstract
PDF is a widely used document format. By studying the structure of PDF file, we notice that incremental updates method used by PDF file can be used to embed information for covert communication. So in this paper, we present three novel data hiding algorithms based on incremental updates which can provide large enough embedding capacity without any change of file display. These algorithms embed information by different covert channels and the logistic chaotic map is used to enhance the security of the embedded data. The experimental results show that the algorithms are also robust to PDF files annotating, marking and interactive forms editing.
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Liu, H., Li, L., Li, J., Huang, J. (2012). Three Novel Algorithms for Hiding Data in PDF Files Based on Incremental Updates. In: Shi, Y.Q., Kim, HJ., Perez-Gonzalez, F. (eds) Digital Forensics and Watermarking. IWDW 2011. Lecture Notes in Computer Science, vol 7128. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-32205-1_15
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DOI: https://doi.org/10.1007/978-3-642-32205-1_15
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-32204-4
Online ISBN: 978-3-642-32205-1
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