PDF (disambiguation)
PDF is an abbreviation for:
- Parton distribution function ( German parton distribution functions ), distribution function of partons in hadrons
- , Developed in 1991 PDF417 ( Portable Data File ), 2D barcode at Symbol Technologies
- Pop Directional Formatting, see bidirectional control characters # character encoding
- Portable Document Format Portable Document Format ( German: ( trans) portable document format ), platform-independent file format for documents, developed and published by Adobe Systems in 1993
- Postdoctoral fellow, see Post Doctoral
- Probability density function density function, aids to describe a continuous probability distribution
- Disambiguation
- Abbreviation