diff --git a/make-includes/standard_rules.make b/make-includes/standard_rules.make
index 9dc479e..308e79c 100644
--- a/make-includes/standard_rules.make
+++ b/make-includes/standard_rules.make
@@ -271,3 +271,19 @@
 
 %.css: %.scss
 	$(SASS) $< $@
+#
+# PNG, SVG, PDF, TikZ from PlantUML
+#
+%.png %-web.png %-print.png: %.plantuml
+	$(PLANTUML) -tpng -output "$(IMGDIR)" $<
+#
+%.svg: %.plantuml
+	$(PLANTUML) -tsvg -output "$(IMGDIR)" $<
+#
+%.pdf %-print.pdf: %.plantuml
+	$(PLANTUML) -tsvg $<
+	$(RSVG_CONVERT) -f pdf $*.svg | $(PDFCROP) - $(IMGDIR)/$@
+	@$(RM_F) $*.svg
+#
+%.tex: %.plantuml
+	$(PLANTUML) -tlatex -pipe < $< > $(IMGDIR)/$@