This is the extensible drawing editor Ipe. Ipe allows you to create figures in PDF format, for inclusion into LaTeX (or plain TeX) documents as well as stand-alone PDF documents, for instance to print transparencies or for on-line presentations.

See the home page or the manual for an introduction.

A Windows package for Ipe is available on the home page. You only need to unpack the archive, and you are ready to run.

If you have homebrew, you can install Ipe by saying

brew install --cask ipe

You can also download the application directly from the home page. Open it, drag Ipe.app to your computer, and you are ready to run.

The file "doc/install.txt" explains how to build and install Ipe on Unix. You can also find precompiled packages for some popular Linux distributions on the home page.

Ipe is copyright (c) 1993-2024 Otfried Cheong

Ipe is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.

As a special exception, you have permission to link Ipe with the CGAL library and distribute executables, as long as you follow the requirements of the Gnu General Public License in regard to all of the software in the executable aside from CGAL.

Ipe is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with Ipe; if not, you can find it at "http://www.gnu.org/copyleft/gpl.html", or write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

Ipe uses the Zlib library (www.gzip.org/zlib), the Freetype 2 library (www.freetype.org), the Cairo library (www.cairographics.org), the libspiro library (http://github.com/fontforge/libspiro), as well as some code from Xpdf (www.foolabs.com/xpdf). Ipe contains the Lua 5.4 interpreter (www.lua.org), and relies on Pdflatex for rendering text, either locally on your computer or in a cloud service.

Before reporting a bug, check that you have the latest Ipe version, and check that it is not yet mentioned in the FAQ on the Ipe wiki.

You can report bugs on the Ipe issue tracker. Check the existing reports to see whether your bug has already been reported. Please include your operating system (Linux, Windows, MacOS) in your report.

Please do not send bug reports directly to me (the first thing I would do with the report is to enter it into the bug tracking system).

Suggestions for features, or random comments on Ipe can be sent to the Ipe discussion mailing list at [email protected]. If you have problems installing or using Ipe and cannot find a guru among your real-life friends, the Ipe discussion mailing list would also be the best place to ask.

You can send suggestions or comments directly to me by Email, but you should then not expect a reply. I cannot dedicate much time to Ipe, and the little time I have I prefer to put into development. I'm much more likely to get involved in a discussion of desirable features on the mailing list, where anyone interested can participate, rather than by direct Email.

If you write interesting ipelets that might be useful to others, please put a link or copy (as you prefer) on the Ipe wiki. Feel free to advertise them on the Ipe discussion list!

Otfried Cheong [email protected]