Look up PDF , pdf , or PDF file in Wiktionary, the free dictionary.

PDF , or Portable Document Format, is a file format used to present documents.

Contents

• Computing and telecommunications
• Mathematics
• Organisations
• Military
• Politics
• Other uses
• See also

PDF, pdf, or PDF file may also refer to:

Computing and telecommunications

• Pop Directional Formatting (Unicode character U+202C), a formatting character in bi-directional formatting
• 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
• Powder Diffraction File

Mathematics

• Pair distribution function
• Probability density function
• Probability distribution function (disambiguation)

Organisations

• Parkinson's Disease Foundation, a medical foundation
• PDF Solutions, a company based in San Jose, California
• Peace Development Fund, a non-profit public foundation based in Amherst, Massachusetts

Other uses

• PDF (gene), a gene that in humans encodes the enzyme peptide deformylase
• Palladium fluoride (PdF), a series of chemical compounds
• Parton distribution function, in particle physics
• Peak draw force, in a compound bow in archery
• Percival David Foundation of Chinese Art
• Pigment dispersing factor, in biology
• Planar deformation features, in geology
• Playa del Fuego, a Delaware art festival
• Postdoctoral fellow
• PDF file, a euphemism of pedophile

See also

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

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