Portable Document File (PDF) Format

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A Portable Document File (PDF) Format is a human readable file format.



  • (Wikipedia, 2020) ⇒ https://en.wikipedia.org/wiki/PDF Retrieved:2020-10-22.
    • The Portable Document Format (PDF) is a file format developed by Adobe in 1993 to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems.[1] 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, and no longer requires any royalties for its implementation.

      PDF files may contain a variety of content besides flat text and graphics including logical structuring elements, interactive elements such as annotations and form-fields, layers, rich media (including video content) and three dimensional objects using U3D or PRC, and various other data formats. The PDF specification also provides for encryption and digital signatures, file attachments and metadata to enable workflows requiring these features.

  1. Adobe Systems Incorporated, PDF Reference, Sixth edition, version 1.23 (53 MB), Nov 2006, p. 33.


  • (Wikipedia, 2009) ⇒ http://en.wikipedia.org/wiki/PDF_(Adobe)
    • … PDF is used for representing two-dimensional documents in a manner independent of the application software, hardware, and operating system. [1]

      Each PDF file encapsulates a complete description of a fixed-layout 2-D document (and, with Acrobat 3-D, embedded 3-D documents) that includes the text, fonts, images, and 2-D vector graphics which compose the documents.

      Formerly a proprietary format, PDF was officially released as an open standard on July 1, 2008, and published by the ISO as ISO 32000-1:2008. [2]