20260318-0 PDF PDF 2012-03-19 2025-02-11 2012-09-01 PDF 2012-11-27 2012-09-27 Portable Document Format PDF – Portable Document Format – is a file format developed to present documents, including text formatting and images, in a manner independent of application software, hardware and operating systems. Based on the PostScript language, each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts, vector graphics, raster images and other information needed to display it. PDF was standardized as an open format and does not require any royalties for its implementation. .pdf pdf application/pdf application/pdf;type=pdf1x PDF false PDF 2012-09-01 PDF 2300 ISO 32000-1 true true false https://www.iana.org/assignments/media-types/application/pdf