PDF (disambiguation)

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

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

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

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)