{
 "id": "adobe-portable-document-catalog-index-file-3-1",
 "name": "Adobe Portable Document Catalog Index File",
 "category": "other",
 "identifiers": {
  "extensions": [
   "pdx"
  ],
  "mime": [
   "application/octet-stream"
  ],
  "puid": [
   "fmt/448"
  ],
  "wikidata": [
   "Q49799499"
  ],
  "magic": [
   {
    "offset": 0,
    "hex": "255044582d332e310d25e2e3cfd30d0a312030206f626a3c3c2f5044583c3c",
    "notes": "Adobe PDX 3.1 Version 1"
   }
  ],
  "signatures": [
   {
    "name": "Adobe PDX 3.1 Version 1",
    "sequences": [
     {
      "position": "bof",
      "offset": 0,
      "pattern": "255044582d332e310d25e2e3cfd30d0a312030206f626a3c3c2f5044583c3c"
     },
     {
      "position": "eof",
      "offset": 0,
      "pattern": "3e3e0d0a2525454f460d0a"
     }
    ]
   },
   {
    "name": "Adobe PDX 3.1 Version 2",
    "sequences": [
     {
      "position": "bof",
      "offset": 0,
      "pattern": "255044582d332e310d25e2e3cfd30d0a312030206f626a3c3c2f5044583c3c"
     },
     {
      "position": "eof",
      "offset": 0,
      "pattern": "3e3e0d2525454f460d"
     }
    ]
   }
  ]
 },
 "status": "unknown",
 "summary": "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.",
 "projects": [
  {
   "name": "PRONOM fmt/448",
   "url": "https://www.nationalarchives.gov.uk/PRONOM/fmt/448",
   "kind": "format-doc"
  },
  {
   "name": "Wikidata Q49799499",
   "url": "https://www.wikidata.org/wiki/Q49799499",
   "kind": "wiki"
  }
 ],
 "provenance": {
  "sources": [
   "pronom",
   "wikidata"
  ]
 },
 "updated": "2026-10-20",
 "version": "3.1",
 "aliases": [],
 "structure": [],
 "parsers": [],
 "tools": [],
 "conversions": [],
 "samples": [],
 "claims": [],
 "verification": []
}