PDF (disambiguation)

PDF is the Portable Document Format in computing.

PDF or PdF may also refer to:

In mathematics, science, and technology

In biology and medicine

• Parkinson's Disease Foundation, in medicine
• Pigment dispersing factor, in biology

In computing and telecommunications

• Package Definition File, System Center Configuration Manager
• Page Description File, used in variable data publishing
• Pop Directional Formatting, Unicode character U+202C, a formatting character that cancels a previous bi-directional formatting character
• Printer Description File, describing capabilities of PostScript printers
• Profile-directed feedback, a compiler optimization better known as Profile-Guided Optimization (PGO)
• Program Development Facility, in the IBM z/OS operating system

In mathematics

• Probability density function
• Probability distribution function

In physics

• Pair distribution function
• Parton distribution function
• Powder Diffraction File

Other uses

• Palladium fluoride (PdF), a series of chemical compounds
• Planar deformation features, in geology

Organisations

• PDF Solutions, a company based in San Jose, California
• Peace Development Fund, a non-profit public foundation based in Amherst, Massachusetts

Military

• Panama Defense Forces
• Peoples Defence Force (Grenada), the army of Grenada prior to the U.S.-led invasion of 1983
• Peoples Defence Force (Singapore), a civil reserve element of the Singapore Armed Forces
• Permanent Defence Forces, the standing branches of the Irish Defence Forces

Politics

• Parti de la France
• People's Democratic Front (Hyderabad), a political party that existed in India during the early 1950s
• Personal Democracy Forum, website and conference on technology in politics

Other uses

• Peak draw force, in a compound bow in archery
• Planetary Defence Force, in the fictional Warhammer 40,000 universe
• Playa del Fuego, a Delaware art festival
• Postdoctoral fellow

See also

• KPDF-CA, a television station in Phoenix, Arizona
• PDF417, or "portable data file 417", a two-dimesional barcode