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.
New US Federal Government Transfer Guidance Released
The US National Archives and Records Administration (NARA), the agency responsible for long-term federal government records, has published NARA Bulletin 2014-004, their Transfer Guidance for federal agencies.
January 2014 by PDF Association staff
Accessibility isn’t easy. For implementers and product managers alike who are responsible for supporting accessibility in PDF, this article describes … Read more
February 2013 by PDF Association staff
Where did PDF/A come from?
January 2012 by Duff Johnson
The twice-annual PDF Standards Week for the winter of 2011-2012 was hosted by Microsoft in their Bravern facility in Bellevue, … Read more
