Portable Document Format (PDF) is an open standard for document exchange. This file format created by Adobe Systems in 1993 is used for representing documents in a manner independent of application software, hardware, and operating systems.[2] Each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts, graphics, and other information needed to display it.
In 1991 Adobe Systems co-founder John Warnock outlined a system called "Camelot"[3] that evolved into the Portable Document Format (PDF).
Originally a proprietary format, PDF was officially released as an open standard on July 1, 2008, and published by the International Organization for Standardization as ISO 32000-1:2008.[1][4] The ISO 32000-1 allows use of some specifications, which are not standardized (e.g. Adobe XML Forms Architecture[5][6]). ISO 32000-1 does not specify methods for validating the conformance of PDF files or readers.[1]
In 1991 Adobe Systems co-founder John Warnock outlined a system called "Camelot"[3] that evolved into the Portable Document Format (PDF).
Originally a proprietary format, PDF was officially released as an open standard on July 1, 2008, and published by the International Organization for Standardization as ISO 32000-1:2008.[1][4] The ISO 32000-1 allows use of some specifications, which are not standardized (e.g. Adobe XML Forms Architecture[5][6]). ISO 32000-1 does not specify methods for validating the conformance of PDF files or readers.[1]
 Adobe Reader icon | |
| Filename extension | .pdf |
|---|---|
| Internet media type | application/pdf application/x-pdf application/x-bzpdfapplication/x-gzpdf |
| Type code | 'PDF ' (including a single space) |
| Uniform Type Identifier | com.adobe.pdf |
| Magic number | %PDF |
| Developed by | Adobe Systems |
| Initial release | 1993 |
| Latest release | 1.7 |
| Standard(s) | ISO 32000-1:2008[1] |
| Website | Adobe PDF Reference Archives |
