A new watermarking algorithm for scanned colored PDF files using DWT and hash function

Author

Mahmoud, Abdulqader ; Al Maharmeh, Hamza ; Al-Ahmad, Hussain

Author_Institution

Electr. & Comput. Eng. Dept., Khalifa Univ. of Sci., Sharjah, United Arab Emirates

fYear

2015

fDate

17-19 May 2015

Firstpage

140

Lastpage

143

Abstract

This paper discusses a technique used to insert a watermark into scanned colored PDF files. The watermarking aims to protect the copyright ownership and authenticate the PDF documents. A logo has been used as a robust watermark for copyright. The logo will be embedded in the green channel of the file. This watermark can be successfully extracted and it can survive against different attacks. Any manipulations in the PDF file will cause the second fragile watermark to change and indicate forgery. The algorithm was successfully tested on different colored PDF files.

Keywords

copyright; discrete wavelet transforms; document handling; message authentication; watermarking; DWT; PDF documents authentication; copyright ownership protection; discrete wavelet transform; forgery; hash function; logo; robust watermark; scanned colored PDF files; watermarking algorithm; Discrete wavelet transforms; Image coding; Portable document format; Robustness; Watermarking; Wavelet domain; Colored PDF file; DWT; Hash function; Hash-key; LSB; PSNR; Watermarking;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Communication Technology Research (ICTRC), 2015 International Conference on

Conference_Location

Abu Dhabi

Type

conf

DOI

10.1109/ICTRC.2015.7156441

Filename

7156441