diff --git a/Makefile.am b/Makefile.am
index f3f3947..1bbb271 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -107,7 +107,8 @@ info_TEXINFOS = \
 	doc/sgpem2dman.texi
 
 licenses = doc/fdl.texi doc/gpl.texi
-EXTRA_DIST += $(licenses)
+images   = doc/main-window.pdf
+EXTRA_DIST += $(licenses) $(images) 
 
 sgpem2uman_TEXINFOS = $(licenses) doc/vers-uman.texi
 sgpem2dman_TEXINFOS = $(licenses) doc/vers-dman.texi
diff --git a/doc/main-window.pdf b/doc/main-window.pdf
new file mode 100644
index 0000000..6d8baf5
Binary files /dev/null and b/doc/main-window.pdf differ
diff --git a/doc/sgpem2uman.texi b/doc/sgpem2uman.texi
index 0b3bd1e..fcbb06f 100644
--- a/doc/sgpem2uman.texi
+++ b/doc/sgpem2uman.texi
@@ -474,6 +474,10 @@ didn't have it previously installed, you may need to re-run @command{configure}.
 @subsection Overall view of the main window
 @cindex main window
 
+@image{main-window,18cm,13.5cm,Screenshot of the main window during a simulation}
+
+Blah blah blah...
+
 @c % -------------------------------------------------
 @node The Schedulables/Requests tree, The Resources list, Overall view of the main window, From the GUI
 @subsection The Schedulables/Requests tree