Look up PDF in Wiktionary, the free dictionary.

PDF is most commonly used to refer to a type of Portable Document Format in computing.

Other uses include the following:

Contents 1 In education 2 In fiction 3 In the military 4 In politics 5 In science 6 In software 7 Additional uses

[edit] In education

• Postdoctoral fellow

[edit] In fiction

• Planetary Defence Force in the Warhammer 40,000 universe

[edit] In the military

• Panama Defense Forces
• P.D.F. (upper case) is an abbreviation of "Permanent Defence Forces" - the standing branches of the Irish Defence Forces
• Peoples Defence Force - the army of Grenada prior to the US led invasion in 1983

[edit] In politics

• Peoples Democratic Front (Hyderabad), a political party that existed in India during early 1950s

[edit] In science

• Atomic pair distribution function (Physics)
• Parkinson's Disease Foundation (Medicine)
• Parton Distribution Functions (Physics)
• Planar deformation features (Geology)
• Polypeptide Deformylase (Chemistry)
• Powder Diffraction File (Physics)
• Probability density function (generally lowercase pdf or p.d.f.) (Mathematics, statistics and probability)
• Probability distribution function (generally uppercase PDF or P.D.F.) (Mathematics, statistics and probability)

[edit] In software

• Package Definition File (System Center Configuration Manager)
• Portable Document Format (also known as "Portable Display Format")
• Pop Directional Formatting, Unicode character U+202C, a formatting character that cancels a previous bi-directional formatting character on the same line in plain text

[edit] Additional uses

• KPDF-CA, a television station in Phoenix, Arizona
• PDF417, a 2D barcode - PDF means Portable Data File
• PDF Solutions, a listed company headquartered in San Jose, California
• Peace Development Fund, a non-profit public foundation based in Amherst, Massachusetts
• Peak draw force in a Compound bow in Archery
• Playa del Fuego, a Delaware art festival

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