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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
Submitted by
Digital Preservation Department / The National Archives

Internal signatures

Adobe PDX 3.1 Version 1

Description
BOF first 31 bytes: %PDX-3.1.%âãÏÓ..1 0 obj<</PDX<< EOF last 11 bytes: >>..%%EOF..
Provenance
Files found within DRI, files found on web

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

Description
BOF first 31 bytes: %PDX-3.1.%âãÏÓ..1 0 obj<</PDX<< EOF last 9 bytes: >>.%%EOF.
Provenance
Files found within DRI, files found on web

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

  • V118

    Release date
    30 April 2024
    • Updated

      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).

  • V62

    Release date
    28 August 2012
    • Added format

      Acrobat Catalog Index 3.1: Outline Entry Added.

    • Added signature

      Acrobat Catalog Index 3.1: Signature developed through PRONOM Research.