The Portable Document Format (PDF) has initially been released by Adobe Systems in 1993  and later became an ISO standard . It was designed as a successor of PostScript and has established itself as a widely accepted document exchange format. Some newer printers support direct PDF printing in addition to PostScript. While PDF is partially based on PostScript, it is neither a complete programming language, nor does it support file system operations. Therefore PDF seems less applicable for printer exploitation and is not further studied in this wiki.
- PDF Reference and Adobe Extensions to the PDF Specification, Adobe Systems Inc.
- ISO 32000-1:2008, Document Management – Portable Document Format, Part 1: PDF 1.7, International Organization for Standardization, 2008