Title:	A STEGANOGRAPHIC IMAGE-BASED APPROACH FOR PROTECTION OF PDF FILES
Author(s):	Valery N. Gorbachev, Lev A. Denisov, Elena M. Kainarova and Ivan K. Metelev
ISBN:	978-989-8533-66-1
Editors:	Yingcai Xiao and Ajith P. Abraham
Year:	2017
Edition:	Single
Keywords:	?rotection, watermarking, pdf, wavelet, least significant bit, Scalable Vector Graphics
Type:	Short Paper
First Page:	285
Last Page:	289
Language:	English
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Full Contents:	click to dowload
Paper Abstract:	Digital images can be copied without an authorization and have to be protected. Two schemes for watermarking images in pdf document were considered. Both schemes include a converter to extract images from the pdf pages and return them back. Frequency and spatial domain embedding were used for hiding a message represented by a binary pattern. We considered visible and invisible watermarking and found that spatial domain LSB technique is more preferable than frequency embedding with the help of DWT.
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