Definition of PDF noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌpiː diː ˈef//
; NAmE NAmE//ˌpiː diː ˈef//
(also PDF file)(computing)
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the abbreviation for Portable Document Format (a type of computer file that can contain words or pictures. It can be read using any system, can be sent from one computer to another, and will look the same on any computer.) I'll send it to you as a PDF. Word Origin 1990s: abbreviation of Portable Document Format.
See the Oxford Advanced American Dictionary entry: PDF