LaTeX Project Public License

E308569

copyleft license free software license software license

The LaTeX Project Public License is a free software license designed specifically for LaTeX-related software and packages, balancing user freedoms with requirements that preserve the integrity and identity of the LaTeX system.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (7)

Label	Occurrences
LaTeX Project Public License canonical	5
LPPL 1.3c	2
LPPL 1.0	1
LPPL 1.2	1
LPPL 1.3	1
LPPL 1.3a	1
LPPL 1.3b	1

How this entity was disambiguated

This entity first appeared as the object of triple T2889369 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: LaTeX Project Public License
Context triple: [LaTeX, license, LaTeX Project Public License]

A. TeX License
The TeX License is a permissive free software license created by Donald Knuth that allows copying and modification of TeX as long as any changed versions are clearly distinguished from the original.
B. GNU Free Documentation License
The GNU Free Documentation License is a copyleft license designed to ensure that documentation, textbooks, and other written works remain freely usable, modifiable, and redistributable.
C. Eclipse Public License
The Eclipse Public License is a widely used open-source software license that permits use, modification, and distribution of covered software while imposing certain copyleft-style obligations on derivative works.
D. GNU General Public License
The GNU General Public License is a widely used free software license that guarantees users the freedoms to run, study, share, and modify software while requiring that derivative works remain similarly open.
E. LaTeX
LaTeX is a widely used, high-quality typesetting system particularly popular in academia for producing technical and scientific documents with precise control over layout and mathematical notation.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: LaTeX Project Public License
Target entity description: The LaTeX Project Public License is a free software license designed specifically for LaTeX-related software and packages, balancing user freedoms with requirements that preserve the integrity and identity of the LaTeX system.

A. TeX License
The TeX License is a permissive free software license created by Donald Knuth that allows copying and modification of TeX as long as any changed versions are clearly distinguished from the original.
B. GNU Free Documentation License
The GNU Free Documentation License is a copyleft license designed to ensure that documentation, textbooks, and other written works remain freely usable, modifiable, and redistributable.
C. Eclipse Public License
The Eclipse Public License is a widely used open-source software license that permits use, modification, and distribution of covered software while imposing certain copyleft-style obligations on derivative works.
D. GNU General Public License
The GNU General Public License is a widely used free software license that guarantees users the freedoms to run, study, share, and modify software while requiring that derivative works remain similarly open.
E. LaTeX
LaTeX is a widely used, high-quality typesetting system particularly popular in academia for producing technical and scientific documents with precise control over layout and mathematical notation.
F. None of above. chosen

Statements (43)

Predicate	Object
instanceOf	copyleft license ⓘ free software license ⓘ software license ⓘ
abbreviation	LPPL ⓘ
allows	copying ⓘ distribution ⓘ modification ⓘ sale of copies ⓘ
appliesTo	LaTeX macros ⓘ LaTeX packages ⓘ LaTeX-related programs ⓘ
category	permissive copyleft license with file integrity requirements ⓘ
compatibleWith	Debian Free Software Guidelines ⓘ
designedFor	LaTeX packages ⓘ LaTeX-related software ⓘ
feature	liability limitation ⓘ maintenance status concept for works ⓘ requirements on changing the name of modified works ⓘ source code availability requirement ⓘ warranty disclaimer ⓘ
focusesOn	preserving the integrity and identity of the LaTeX system ⓘ
governs	distribution of LaTeX base system ⓘ distribution of many LaTeX packages on CTAN ⓘ
hasVersion	LaTeX Project Public License self-linksurface differs ⓘ surface form: LPPL 1.0 LPPL ⓘ surface form: LPPL 1.1 LaTeX Project Public License self-linksurface differs ⓘ surface form: LPPL 1.2 LaTeX Project Public License self-linksurface differs ⓘ surface form: LPPL 1.3 LaTeX Project Public License self-linksurface differs ⓘ surface form: LPPL 1.3a LaTeX Project Public License self-linksurface differs ⓘ surface form: LPPL 1.3b LaTeX Project Public License self-linksurface differs ⓘ surface form: LPPL 1.3c
jurisdiction	not restricted to a specific country ⓘ
latestVersion	LaTeX Project Public License self-linksurface differs ⓘ surface form: LPPL 1.3c
maintainedBy	LaTeX Project ⓘ
purpose	to balance user freedoms with preservation of LaTeX system integrity ⓘ
recognizedBy	Free Software Foundation as a free software license ⓘ Open Source Initiative as an open source license ⓘ
requires	preservation of the identity of the work ⓘ that modified versions be clearly identified ⓘ that modified versions not be misrepresented as the original ⓘ
textAvailableAt	https://www.latex-project.org/lppl/lppl-1-3c/ ⓘ
usedBy	LaTeX ⓘ surface form: LaTeX2e many packages on CTAN ⓘ
website	https://www.latex-project.org/lppl/ ⓘ

How these facts were elicited

Referenced by (12)

Full triples — surface form annotated when it differs from this entity's canonical label.

LaTeX → license → LaTeX Project Public License ⓘ

BibTeX → license → LaTeX Project Public License ⓘ

TeX License → relatedTo → LaTeX Project Public License ⓘ