A case study in PDF forensics: The Epstein PDFs
This article details a PDF forensics case study on a small, random selection of the Epstein PDF files released by the US Department of Justice (DoJ). The tranche contains 4,085 PDF files, with an estimated 5,879 remaining unreleased. Key findings include:
- A difference in PDF version reporting between forensic tools.
- The presence of two incremental updates.
- The discovery of a hidden (orphaned) document information dictionary revealing the software used in processing.
- The DoJ avoided JPEG images to prevent metadata leakage.
- Overall, the DoJ’s sanitization workflow could be improved to reduce file size and information leakage.
A case study in PDF forensics: The Epstein PDFs
This article details a PDF forensics case study on a small, random selection of the Epstein PDF files released by the US Department of Justice (DoJ). The tranche contains 4,085 PDF files, with an estimated 5,879 remaining unreleased. Key findings include:
- A difference in PDF version reporting between forensic tools.
- The presence of two incremental updates.
- The discovery of a hidden (orphaned) document information dictionary revealing the software used in processing.
- The DoJ avoided JPEG images to prevent metadata leakage.
- Overall, the DoJ’s sanitization workflow could be improved to reduce file size and information leakage.
CeBIT: PDF Association members to show practical uses for PDF/A-3
This year at CeBIT, PDF Association members are focusing on practical uses for PDF/A-3. This version of the ISO standard opens up many new potential applications, as it allows any … Read more
January 2014 by PDF Association staff
Longtime chairman of the US Committee for PDF/UA, Duff Johnson maintains a page listing software providing PDF/UA functionality as well … Read more
January 2014 by Olaf Drümmer
The Sunlight Foundation PDF Liberation Hackathon will be held at 6 locations on the Jan 17-19, 2014, weekend. It will … Read more
February 2013 by PDF Association staff
Where did PDF/A come from?
