1 files changed, 4 insertions, 0 deletions

diff --git a/documentation/README b/documentation/README
index 1e7b4f0e65..2d9eb887b2 100644
--- a/documentation/README
+++ b/documentation/README
@@ -113,6 +113,10 @@ To install all required packages run:
 
  $ pip3 install sphinx sphinx_rtd_theme pyyaml
 
+Also install the "inkscape" package from your distribution.
+Inkscape is need to convert SVG graphics to PNG (for EPUB
+export) and to PDF (for PDF export).
+
 To build the documentation locally, run:
 
  $ cd documentation