/ ˌpiː diː ˈef; NAmE / (also ˌPDˈF file ) noun
( computing ) 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. (abbreviation for 'Portable Document Format') :
I'll send it to you as a PDF.
••
WORD ORIGIN
1990s: abbreviation of Portable Document Format .