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.
Interview with EDC keynote speaker David Blatner
Author of over 15 books and a guru to generations of graphic designers, David Blatner is a legend in digital publishing. He’s also the keynote speaker opening the 2nd day … Read more
April 2019 by Duff Johnson
When I’m not working for the PDF Association I still do some consulting in the document management space. Some recent … Read more
March 2019 by David Blatner
This year, the Electronic Document Conference (EDC) is being held in the same city and only days after CreativePro Week … Read more
February 2019 by PDF Association staff
The Electronic Document Conference is a do-not-miss event for developers, product managers and technical users creating and leveraging electronic document … Read more
February 2019 by Dietrich von Seggern (callas software GmbH)
When working with support cases the ones that are related to Overprint in PDF are likely to surprise customers. It … Read more
