Summary
|
| Name |
Adobe Portable Document Catalog Index File |
| Version |
2.0 |
| Other names |
|
| Identifiers |
PUID:
fmt/446
|
| Family |
|
| Classification |
|
| Disclosure |
|
| 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. |
| Orientation |
|
| Byte order |
|
| Related file formats |
None.
|
| Technical Environment |
|
| Released |
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| Supported until |
|
| Format Risk |
|
| Developed by |
None.
|
| Supported by |
None.
|
| Source |
 Digital Preservation Department / The National Archives
|
| Source date |
28 Aug 2012 |
| Source description |
PDX is Adobe Acrobat Catalog Index file, available in Adobe Acrobat versions 2 and later.
When created, a PDF Catalog Index will also create a number of dependent sub-files of specific filetypes.
The extensions for these filetypes within earlier versions of .pdx are .wld, .abt, .did, .ddd, .pdd, .plc, .cat, .trn.
In later versions only .idx files are created. The Catalog Index creates a fully text-searchable relationship between the indexed pdf files; 11/2023 (v.115)- Modified the offset values in the internal signature from null to 0 as part of a project to match PRONOM data with the xsd standard. Internally researched; 04/2024 (v.118): Description and links added as part of PRONOM Research Week 2023. Submitted by Archives nationales (French National Archives). |
| Last updated |
17 Apr 2024 |
| Note |
https://helpx.adobe.com/acrobat/using/creating-pdf-indexes.html |
|
Details: File format summary
: detailed report on file format 
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