# Portable Document Format, version 1.4

> deprecated version of the Portable Document Format file format

**Wikidata**: [Q26085326](https://www.wikidata.org/wiki/Q26085326)  
**Source**: https://4ort.xyz/entity/portable-document-format-version-1-4


## References

1. [Source](https://www.adobe.com/devnet/pdf/pdf_reference_archive.html)
2. RFC 3778: The application/pdf Media Type
3. PRONOM