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PDF (Portable Document Format)

Portable Document Format (PDF), sometimes mistaken for "Printable Document Format", is an open file format created by Adobe Systems in 1993 and is now being prepared for submission as an ISO standard. It is used for representing two-dimensional documents in a device independent and resolution independent fixed-layout document format. Each PDF file encapsulates a complete description of a 2D document (and, with the advent of Acrobat 3D, embedded 3D documents) that includes the text, fonts, images, and 2D vector graphics that compose the document.

While PDF can describe very simple one page documents, it may also be used for many pages, complex documents that use a variety of fonts, graphics, colors, and images.

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