.pdf

1 claimant 1 primary 0 secondary unambiguous primary

SWH popularity

From the SWH-MSR-ARV dataset (Desmazières, Di Cosmo, Lorentz, MSR 2025; file nb_extensions_alphanum.csv) — one row per (ext, year) in the full SWH archive. Case-aggregated. citation.

124.5M
total occurrences
26.3M
since 2019 (21.1%)
1970–2023
years active

Case variants in archive: .pdf (124.3M), .PDF (236.4K), .Pdf (4.0K), .pdF (10), .pDF (9), .PDf (2), .pDf (1), .PdF (1) — aggregated above.

Attribution status

This extension is attributed to pdf as primary by 1 authoritative claim.

Authoritative sources: ✗ Linguist · no claim ✗ Pygments · no claim ✓ Wikidata · Q42332 ✗ Wikipedia · no claim

Disagree or have a correction? Open a labelling issue.

Claimants (1)

Languages that list .pdf among their extensions. Strength reflects whether the upstream source treated it as their primary extension.
LanguageSourceStrength
pdfwikidataprimary

Wikidata says… (57)

File formats, image formats, audio codecs and other non-PL entities that claim .pdf on Wikidata (property P1195) or in the Wikipedia infobox. Source: data/derived/external_extension_index.csv. Click Use as new PL on any row to open the Add-PL form pre-filled with that entry's name, Wikipedia/Wikidata URL, and this extension — one submission creates the PL + claim.
Right entry isn't listed? Add manually ↗
FormatClass (Wikidata P31)Suggested labelMIMENotesAction
PDF Q42332top match
family of file formats used to present documents
file format; electronic documentapplication/pdfUse as new PL ↗
GeoPDF Q5533911
file format extending PDF to allow for embedding georegistration information for maps
file formatUse as new PL ↗
Portable Document Format for Engineering Q2043942
file format
file formatapplication/pdfUse as new PL ↗

SWH-mined examples (0)

No archived examples for .pdf in our local mirror yet.

Need an archived example for this extension?
No verbatim file with extension .pdf in our local SWH mirror yet. Submit a sample-mining request and a maintainer will run swh_extension_mining.py against the live archive for this extension; samples land here once the run completes.
(or open the pre-filled issue directly)