Adobe Portable Document Catalog Index File 3.1
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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.
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| Extensions | .pdx |
|---|---|
| MIME types | application/octet-stream |
| Signatures | 255044582d332e310d25e2e3cfd30d0a312030206f626a3c3c2f5044583c3c at byte 0 (Adobe PDX 3.1 Version 1) |
| PRONOM | fmt/448 |
| Wikidata | Q49799499 |
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From PRONOM, Wikidata. Updated 2026-10-20.