# Portable Document Format, version 1.6

> deprecated version of the Portable Document Format file format

**Wikidata**: [Q26085319](https://www.wikidata.org/wiki/Q26085319)  
**Source**: https://4ort.xyz/entity/portable-document-format-version-1-6


## References

1. ISO 32000–1:2008: Document management—Portable document format—Part 1: PDF 1.7
2. [Source](http://www.loc.gov/preservation/digital/formats/fdd/fdd000276.shtml)
3. RFC 3778: The application/pdf Media Type
4. PRONOM