|  |  | 12.2 Environment variables

## 12.2 Environment variables

Ipe, ipetoipe, and iperender respect the following environment variables:

IPELATEXDIR
  the directory where Ipe runs Pdflatex.
IPEFONTMAP
  the complete path of the font map, describing where Ipe can find the 14 standard PDF fonts.
IPEDEBUG
  set to 1 for debugging output.
IPEANCIENTPDFTEX
  set this variable to use Pdftex versions older than 1.40.

The Ipe program uses several additional environment variables:

EDITOR
  external editor to use for editing text objects.
IPESTYLES
  a directory where Ipe looks for stylesheets, for instance for the standard stylesheet basic.isy.
IPELETPATH
  a list of directories containing ipelets.
IPEICONDIR
  directory containing icons for the Ipe user interface.
IPEDOCDIR
  directory containing Ipe documentation.
IPELUAPATH
  path for searching for Ipe Lua code.

|  |  | 12.2 Environment variables