PDFSteg is an open-sourced information hiding tool developed by the SnP lab. The tool can be used to hide information into the PDF documents, leveraging PDF steganography. The key idea is to embed sensitive data into PDF documents through imperceptible modifications to the PDF stream operator values. Compared to existing PDF steganography techniques, our proposed design can achieve a higher carrying capacity and embedding rate, while minimizing the visual impacts to the PDF document. A salient advantage of our design is having tested all the possible operators defined in the Adobe PDF standard (version 3.0) to assess their potential usage in the PDF steganography. Check out our technical report.
Version: 0.99
Language: Python
License: GNU GPL v3.
Source Code

Refer to this tool (BibTeX):
@article{klemm2024hiding,
title={Hiding Sensitive Information Using PDF Steganography},
author={Klemm, Ryan and Chen, Bo},
journal={arXiv preprint arXiv:2405.00865},
year={2024}
}