Arman Gungor – Meridian Discovery – Link to complete posting: “Portable Document Format (PDF) forensic analysis is a type of request we encounter often in our computer forensics practice. The requests usually entail PDF forgery analysis or intellectual property related investigations. In virtually all cases, I have found that the PDF metadata contained in metadata streams and the document information dictionary have been instrumental. I will provide a brief overview of these metadata sources and then provide an example of how they can be useful during PDF forensic analysis. PDF is an electronic file format created by Adobe Systems in the early 1990s. It is used primarily to reliably exchange documents independent of platform—hardware, software or operating system. PDF is also an ISO Standard (ISO 32000-1). Due to its platform independent nature, numerous personal and business documents such as reports, agreements and operational documents are created and exchanged in PDF format. Consequently, we encounter them very often during e-Discovery processing, productions and PDF forensic analysis—especially during fraudulent document analysis…”