PDF, or Portable Document Format, is a file format used to present documents.
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
Military Panama Defense Forces People's Defence Force (Myanmar), armed wing of the Burmese government-in-exile since 2021 People's Defence Force (Singapore) Permanent Defence Forces, the standing branches of Ireland's military Popular Defense Forces (Gaza), a militant group in Gaza Popular Defence Forces (Sudan), a paramilitary group in Sudan Puntland Dervish Force, Armed force of Puntland
Politics Parti de la France People's Democratic Front (Hyderabad), a political party that existed in India during the early 1950s Progressive Democratic Front (Andhra Pradesh), a political party in the Indian state of Andhra Pradesh Party of Progress (Germany) (Partei des Fortschritts), a political party in Germany founded in 2020 People's Democratic Front (Burma) People's Democratic Front (Indonesia) People's Democratic Front (Iran) People's Democratic Front (Meghalaya), India People's Democratic Front (Romania) Popular Democratic Front (Italy)
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