pdfresurrect

tool for extracting/scrubbing versioning data from PDF documents

PDFResurrect is a tool for analyzing and manipulating revisions to PDF documents (sometimes known as Adobe Acrobat files). The PDF format allows for previous changes to be retained in a revised version of the document, thereby keeping a running history of revisions to the document. This tool extracts all previous revisions while also producing a summary of changes between revisions. It can also "scrub" or write data over the original instances of PDF objects that have been modified or deleted, in an effort to disguise information from previous versions that might not be intended for anyone else to read.