Revised LaTeX Project Public License (LPPL)
I have attached a new working draft for the LaTeX Project Public License
After the debate that took place months ago, I and several members of
the LaTeX Project worked off and on towards solving the problems that
had been raised before. This version, a near-total rewrite, is the
Much of the license is my own writing. I point this out only to warn
against inferring that its mistakes and errors are the fault of the
LaTeX Project. Since I have been the main participant (with Henning
Makholm occasionally participating as well), it's likely that I've
missed glaring errors that are easily corrected. So, don't take this as
a mere request for blessing.
However, I can also predict that that the LaTeX people will likely stand
their ground in places.
I apologize for not following the debates in debian-legal recently, or
responding to requests for information regarding the LPPL, as I've had
to cut back a little on my reading due to personal issues.
LaTeX people: this is a cut-n-paste from Chris's mail of March 3rd. If
I've screwed up, please speak up.
The LaTeX Project Public License
LPPL Version 1.3-draft-jal-fmi 2003-03-2
Copyright 1999,2002,2003 LaTeX3 Project
Everyone is allowed to distribute verbatim copies of this
license document, but modification of it is limited as
mentioned below under `Choosing This License or Another License'.
[[ jal: If you use this license or any part of it, I will assign
copyright for my portions of this license to the LaTeX
Project. I will provide any assurances to this fact you need
upon request. ]]
The LaTeX Project Public License (LPPL) is the license under which the
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under a similar license called LPPL-kernel.
You may use this license for any work that you have written and wish
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a. If it is being maintained, ask the Current Maintainer to update
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b. Otherwise, announce your intention to take over maintenance
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WHETHER AND HOW TO DISTRIBUTE WORKS UNDER THIS LICENSE
This section contains important instructions, examples, and
recommendations for authors who are considering distributing their
works under this license. These authors are addressed as `you' in
Choosing This License or Another License
If for any part of your work you want or need to use *distribution*
conditions that differ from those in this license, then do not refer to
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distributed under the LPPL.
The document `modguide.tex' in the base LaTeX distribution explains
the motivation behind the conditions of this license. It explains,
for example, why distributing LaTeX under the GNU General Public
License (GPL) was considered inappropriate. Even if your work is
unrelated to LaTeX, the discussion in `modguide.tex' may still be
relevant, and authors intending to distribute their works under any
license are encouraged to read it.
How to Use This License
To use this license, place in each of the files of your work both
an explicit copyright notice including your name and the year and also
a statement that the distribution and/or modification of the file is
constrained by the conditions in this license.
Here is an example of such a notice and statement:
%% Copyright 2003 M. Y. Name
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either version 1.3
% of this license or (at your option) any later version.
% The latest version of this license is in
% and version 1.3 or later is part of all distributions of LaTeX
% version 2003/06/01 or later.
% For interpretation of the LPPL the Base Format for this work
% is the "LaTeX-Format".
% This work has the LPPL maintenance status "maintained".
% This work consists of the files pig.dtx and pig.ins
% and the derived file pig.sty.
Given such a notice and statement in a file, the conditions given in
this license document would apply, with `The Work' referring to the
three files `pig.dtx', `pig.ins', and `pig.sty' (generated from
`pig.dtx' using `pig.ins'), the `Base Format' referring to
`LaTeX-Format', and `The Copyright Holder' referring to the person
`M. Y. Name'.
To prevent the Maintenance section of LPPL to apply, you could change
"maintained" above into "author-maintained". Or if you seek for
somebody to take over maintenance you may change that to "unmaintained".
Defining What Constitutes The Work
The LPPL requires that distributions of The Work contain all the
files of The Work. It is therefore important that you provide a
way for the licensee to determine which files constitute The Work.
This could, for example, be achieved by explicitly listing all the
files of The Work near the copyright notice of each file or by
using a line like
% This work consists of all files listed in manifest.txt.
in that place. In the absence of an unequivocal list it might be
impossible for the licensee to determine what is considered by you
to comprise The Work.