| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 564464 | Signal Processing | 2010 | 9 Pages |
Abstract
A new covert communication method via PDF files is proposed. A secret message, after being encoded by a special ASCII code and embedded at between-word and between-character locations in the text of a PDF file, becomes invisible in the window of a common PDF reader, creating a steganographic effect for secret transmission through the PDF file. Experimental results show the feasibility of the proposed method.
Keywords
Related Topics
Physical Sciences and Engineering
Computer Science
Signal Processing
Authors
I-Shi Lee, Wen-Hsiang Tsai,