Portable Document Format
Adobe PDF.svg
Adobe PDF icon
Filename extension.pdf[note 1]
Internet media type
  • application/pdf,[1]
  • application/x-pdf
  • application/x-bzpdf
  • application/x-gzpdf
Type code'PDF '[1] (including a single space)
Uniform Type Identifier (UTI)com.adobe.pdf
Magic number%PDF
Developed byISO
Initial release15 June 1993; 25 years ago (1993-06-15)
Latest release
Extended toPDF/A, PDF/E, PDF/UA, PDF/VT, PDF/X
StandardISO 32000-2

The Portable Document Format (PDF) is a file format developed by Adobe in the 1990s to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems.[2][3] Based on the PostScript language, each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts, vector graphics, raster images and other information needed to display it. PDF was standardized as an open format, ISO 32000, in 2008, and no longer requires any royalties for its implementation.

Today, PDF files may contain a variety of content besides flat text and graphics including logical structuring elements, interactive elements such as annotations and form-fields, layers, rich media (including video content) and three dimensional objects using U3D or PRC, and various other data formats.[citation needed] The PDF specification also provides for encryption and digital signatures, file attachments and metadata to enable workflows requiring these features.

History and standardization

Adobe Systems made the PDF specification available free of charge in 1993. In the early years PDF was popular mainly in desktop publishing workflows, and competed with a variety of formats such as DjVu, Envoy, Common Ground Digital Paper, Farallon Replica and even Adobe's own PostScript format.

PDF was a proprietary format controlled by Adobe until it was released as an open standard on July 1, 2008, and published by the International Organization for Standardization as ISO 32000-1:2008,[4][5] at which time control of the specification passed to an ISO Committee of volunteer industry experts. In 2008, Adobe published a Public Patent License to ISO 32000-1 granting royalty-free rights for all patents owned by Adobe that are necessary to make, use, sell, and distribute PDF compliant implementations.[6]

PDF 1.7, the sixth edition of the PDF specification that became ISO 32000-1, includes some proprietary technologies defined only by Adobe, such as Adobe XML Forms Architecture (XFA) and JavaScript extension for Acrobat, which are referenced by ISO 32000-1 as normative and indispensable for the full implementation of the ISO 32000-1 specification. These proprietary technologies are not standardized and their specification is published only on Adobe’s website.[7][8][9][10][11] Many of them are also not supported by popular third-party implementations of PDF.

On July 28, 2017, ISO 32000-2:2017 (PDF 2.0) was published.[12] ISO 32000-2 does not include any proprietary technologies as normative references.[13]

Other Languages
Afrikaans: PDF
Alemannisch: PDF
asturianu: PDF
azərbaycanca: PDF
Bân-lâm-gú: PDF
беларуская: Portable Document Format
беларуская (тарашкевіца)‎: PDF
български: PDF
Boarisch: PDF
bosanski: PDF
català: PDF
Чӑвашла: Portable Document Format
Ελληνικά: Portable Document Format
español: PDF
euskara: PDF
فارسی: پی‌دی‌اف
føroyskt: PDF
galego: PDF
ગુજરાતી: પીડીએફ
한국어: PDF
հայերեն: Portable Document Format
हिन्दी: पीडीऍफ
Bahasa Indonesia: Portable Document Format
íslenska: PDF
עברית: PDF
ಕನ್ನಡ: ಪಿಡಿಎಫ್
қазақша: Portable Document Format
Kinyarwanda: PDF
Кыргызча: Portable Document Format
Latina: PDF
Lëtzebuergesch: Portable Document Format
lietuvių: PDF
македонски: PDF
मराठी: पीडीएफ
occitan: PDF
ਪੰਜਾਬੀ: ਪੀਡੀਅੈੱਫ
русиньскый: Portable Document Format
русский: Portable Document Format
Simple English: Portable Document Format
српски / srpski: PDF
srpskohrvatski / српскохрватски: Portable Document Format
suomi: PDF
தமிழ்: பி.டி.எவ்
Türkçe: PDF
українська: PDF
Tiếng Việt: PDF
ייִדיש: PDF
粵語: PDF