--- /dev/null
+
+SOURCES = CHK-hashes.svg file-encoding1.svg file-encoding2.svg file-encoding3.svg file-encoding4.svg file-encoding5.svg file-encoding6.svg subtree1.svg
+
+PNGS = $(patsubst %.svg,%.png,$(SOURCES))
+EPSS = $(patsubst %.svg,%.eps,$(SOURCES))
+
+.PHONY: images-png images-eps
+all: $(PNGS) $(EPSS)
+images-png: $(PNGS)
+images-eps: $(EPSS)
+
+%.png: %.svg
+ inkscape -b white -d 90 --export-png $@ $<
+%.eps: %.svg
+ inkscape --export-eps $@ $<
+
+clean:
+ rm -f *.png *.eps