diff --git a/.hgignore b/.hgignore
--- a/.hgignore
+++ b/.hgignore
@@ -7,6 +7,7 @@
 *.log
 *.lo
 *.tar.*
+*.bak
 Makefile.in
 aclocal.m4
 config.h.in
@@ -25,6 +26,7 @@
 .libs/*
 .deps/*
 demo/*.eps
+doc/images/*.png
 
 syntax: regexp
 (.*/)?\#[^/]*\#$
diff --git a/configure.ac b/configure.ac
--- a/configure.ac
+++ b/configure.ac
@@ -27,6 +27,7 @@
 AC_PROG_LIBTOOL
 
 AC_CHECK_PROG([doxygen_found],[doxygen],[yes],[no])
+AC_CHECK_PROG([gs_found],[gs],[yes],[no])
 
 if test x"$lx_cmdline_cxxflags_set" != x"set" -a "$GXX" = yes; then
   CXXFLAGS="$CXXFLAGS -Wall -W -Wall -W -Wunused -Wformat=2 -Wctor-dtor-privacy -Wnon-virtual-dtor -Wno-char-subscripts -Wwrite-strings -Wno-char-subscripts -Wreturn-type -Wcast-qual -Wcast-align -Wsign-promo -Woverloaded-virtual -Woverloaded-virtual -ansi -fno-strict-aliasing -Wold-style-cast -Wno-unknown-pragmas"
diff --git a/doc/Doxyfile.in b/doc/Doxyfile.in
--- a/doc/Doxyfile.in
+++ b/doc/Doxyfile.in
@@ -101,7 +101,8 @@
                          @abs_top_srcdir@/doc
 EXAMPLE_PATTERNS       = 
 EXAMPLE_RECURSIVE      = NO
-IMAGE_PATH             = @abs_top_srcdir@/doc/images
+IMAGE_PATH             = @abs_top_srcdir@/doc/images \
+		       	 @abs_top_builddir@/doc/gen-images
 INPUT_FILTER           = 
 FILTER_PATTERNS        = 
 FILTER_SOURCE_FILES    = NO
diff --git a/doc/Makefile.am b/doc/Makefile.am
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -9,10 +9,38 @@
 	doc/namespaces.dox \
 	doc/html
 
+DOC_EPS_IMAGES18 = \
+	nodeshape_0.eps \
+	nodeshape_1.eps \
+	nodeshape_2.eps \
+	nodeshape_3.eps \
+	nodeshape_4.eps
+
+DOC_EPS_IMAGES = \
+	$(DOC_EPS_IMAGES18)
+
+DOC_PNG_IMAGES = \
+	$(DOC_EPS_IMAGES:%.eps=doc/gen-images/%.png)
+
+EXTRA_DIST += $(DOC_EPS_IMAGES:%=doc/images/%)
+
 doc/html:
 	$(MAKE) $(AM_MAKEFLAGS) html
 
-html-local:
+GS_COMMAND=gs -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4
+
+$(DOC_EPS_IMAGES18:%.eps=doc/gen-images/%.png): doc/gen-images/%.png: doc/images/%.eps
+	-mkdir doc/gen-images
+	if test ${gs_found} = yes; then \
+	  $(GS_COMMAND) -sDEVICE=pngalpha -r18 -sOutputFile=$@ $<; \
+	else \
+	  echo; \
+	  echo "Ghostscript not found."; \
+	  echo; \
+	  exit 1; \
+	fi
+
+html-local: $(DOC_PNG_IMAGES)
 	if test ${doxygen_found} = yes; then \
 	  cd doc; \
 	  doxygen Doxyfile; \
@@ -27,6 +55,8 @@
 clean-local:
 	-rm -rf doc/html
 	-rm -f doc/doxygen.log
+	-rm -f $(DOC_PNG_IMAGES)
+	-rm -rf doc/gen-images
 
 update-external-tags:
 	wget -O doc/libstdc++.tag.tmp http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/libstdc++.tag && \