Format
Acrobat PDF 1.2 - Portable Document Format
Summary
- Name
- Acrobat PDF 1.2 - Portable Document Format
- Version
- 1.2
- Identifiers
-
- MIME: application/pdf
- Apple Uniform Type Identifier: com.adobe.pdf
- PUID: fmt/16
- Format type
- Page Description
- Disclosure
- None
- Description
- Portable Document Format is a platform-independent format for representing formatted documents, developed by Adobe Systems Incorporated. It is the native format of Adobe’s Acrobat family of software products, version 1.2 corresponding to the release of Acrobat 3.0. PDF is based on, and shares the same imaging model as, the PostScript page description language. A PDF file comprises a Header section, a Body section containing the objects which make up the document, a Cross Reference Table, and a Trailer section. PDF files can contain a wide variety of content, including text, images, video and audio.
- Format encoding
- Binary
- File extensions
-
pdf - Submitted by
- Digital Preservation Department / The National Archives
- Developed by
- Adobe Systems Incorporated
Relationships
- Has lower priority than
-
- Acrobat PDF/A - Portable Document Format 1a
- Acrobat PDF/X - Portable Document Format - Exchange 1:1999
- Acrobat PDF/X - Portable Document Format - Exchange 1:2001
- Acrobat PDF/X - Portable Document Format - Exchange 1a:2003
- Acrobat PDF/X - Portable Document Format - Exchange 2:2003
- Acrobat PDF/X - Portable Document Format - Exchange 3:2003
- Acrobat PDF/X - Portable Document Format - Exchange 1a:2001
- Acrobat PDF/X - Portable Document Format - Exchange 3:2002
- Acrobat PDF/A - Portable Document Format 2a
- Acrobat PDF/A - Portable Document Format 2b
- Acrobat PDF/A - Portable Document Format 2u
- Acrobat PDF/A - Portable Document Format 3a
- Acrobat PDF/A - Portable Document Format 3b
- Acrobat PDF/A - Portable Document Format 3u
- Acrobat PDF/X - Portable Document Format - Exchange PDF/X-4
- Acrobat PDF/X - Portable Document Format - Exchange PDF/X-4p
- Acrobat PDF/X - Portable Document Format - Exchange PDF/X-5g
- Acrobat PDF/X - Portable Document Format - Exchange PDF/X-5pg
- Acrobat PDF/X - Portable Document Format - Exchange PDF/X-5n
- Acrobat PDF/E - Portable Document Format for Engineering PDF/E-1
- Has priority over
- Is previous version of
- Is subsequent version of
- Is supertype of
Internal signatures
PDF 1.2
- Description
- BOF: %PDF-1.2 EOF (offset up to 1024 bytes): %%EOF
- Provenance
- DROID signature research.
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- None
- Byte Sequence
255044462D312E32- Endianness
- Big-endian
- Min Frag Length
- Absolute from EOF
- Offset
- 0
- Max offset
- 1024
- Byte Sequence
2525454F46- Endianness
- Big-endian
Changelog
-
V98
- Release date
- 27 October 2021
-
Updated
Acrobat PDF 1.2 - Portable Document Format: Given priority over MPEG 1/2 Audio Layer 3 fmt/134 due to rare clash condition.
-
V88
- Release date
- 27 September 2016
-
Updated
Acrobat PDF 1.2 - Portable Document Format: Gave priority over x-fmt/453 - TrueType Font. Suggested by Archives New Zealand.
-
V75
- Release date
- 17 July 2014
-
Updated
Acrobat PDF 1.2 - Portable Document Format: EOF offset increased in accordance with Adobe PDF documentation.
-
V60
- Release date
- 11 June 2012
-
Updated
Acrobat PDF 1.2 - Portable Document Format: Existing signature refined through PRONOM Research.
-
V58
- Release date
- 21 March 2012
-
Updated
Acrobat PDF 1.2 - Portable Document Format: Signature refined through PRONOM Research.
-
V49
- Release date
- 5 April 2011
-
Updated
Acrobat PDF 1.2 - Portable Document Format: Existing signature refined through PRONOM Research.
-
V38
- Release date
- 1 August 2010
-
Updated
Acrobat PDF 1.2 - Portable Document Format: Signature updated as part of DROID 5.0 research to improve efficiency