• A file format developed in the 1990s by Adobe 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 ISO 32000 in 2008. ← Wikipedia

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