# pdfTeX

> extension of Knuth's typesetting program TeX

**Wikidata**: [Q26863](https://www.wikidata.org/wiki/Q26863)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/PdfTeX)  
**Source**: https://4ort.xyz/entity/pdftex


## References

1. [pdftex – Licenses](https://www.openhub.net/p/pdftex/licenses)
2. [NEWS](https://www.tug.org/svn/texlive/trunk/Build/source/texk/web2c/pdftexdir/NEWS?revision=48188&view=markup)
3. [NEW](https://www.tug.org/applications/pdftex/NEWS)
4. [NEWS](https://www.tug.org/applications/pdftex/NEWS)
5. [Source](https://www.tug.org/applications/pdftex/NEWS)
6. Freebase Data Dumps. 2013
7. [pdfTeX - TeX Users Group](https://tug.org/applications/pdftex/)
8. [Source](https://www.tug.org/texlive/Contents/live/texmf-dist/doc/pdftex/manual/pdftex-a.pdf)