Format
Adobe Portable Document Catalog Index File
Summary
- Name
- Adobe Portable Document Catalog Index File
- Version
- 3.1
- Identifiers
- PUID: fmt/448
- Description
- Adobe Portable Document Catalog Index File (PDX) is the format of a file created when an index is built for a collection of PDF documents defined as a catalog in Adobe Acrobat Pro versions 2.0 and later, allowing users to search through the contents of the catalogue.
- Note
- https://helpx.adobe.com/acrobat/using/creating-pdf-indexes.html
- File extensions
-
pdx - Source
- Digital Preservation Department / The National Archives
Internal signatures
Adobe PDX 3.1 Version 1
- Note
- BOF first 31 bytes: %PDX-3.1.%âãÏÓ..1 0 obj<</PDX<< EOF last 11 bytes: >>..%%EOF..
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- None
- Byte Sequence
255044582D332E310D25E2E3CFD30D0A312030206F626A3C3C2F5044583C3C- Endianness
- None
- Min Frag Length
- Absolute from EOF
- Offset
- 0
- Max offset
- None
- Byte Sequence
3E3E0D0A2525454F460D0A- Endianness
- None
Adobe PDX 3.1 Version 2
- Note
- BOF first 31 bytes: %PDX-3.1.%âãÏÓ..1 0 obj<</PDX<< EOF last 9 bytes: >>.%%EOF.
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- None
- Byte Sequence
255044582D332E310D25E2E3CFD30D0A312030206F626A3C3C2F5044583C3C- Endianness
- None
- Min Frag Length
- Absolute from EOF
- Offset
- 0
- Max offset
- None
- Byte Sequence
3E3E0D2525454F460D- Endianness
- None
Changelog
-
Updated in V118
- Release date
- 30 April 2024
Adobe Portable Document Catalog Index File 3.1: Description created and documentation links added as part of PRONOM Research Week 2023. Submitted by Archives nationales (French National Archives).
-
Added in V62
- Release date
- 28 August 2012
Acrobat Catalog Index 3.1: Signature developed through PRONOM Research.
Acrobat Catalog Index 3.1: Outline Entry Added.