diff --git a/garlic/doc/Makefile b/garlic/doc/Makefile
index 3c60011..a6270bb 100644
--- a/garlic/doc/Makefile
+++ b/garlic/doc/Makefile
@@ -1,14 +1,15 @@
-all: execution.pdf execution.ascii pp.pdf pp.ascii
+all: execution.pdf execution.utf8 execution.ascii pp.pdf pp.utf8 pp.ascii
 
 TTYOPT=-rPO=4m -rLL=72m
-#TTYOPT=-dpaper=a0 -rPO=4m -rLL=72m
+PDFOPT=-dpaper=a4 -rPO=4c -rLL=13c
+PREPROC=-k -t -p -R
 
-%.pdf: %.ms
-	REFER=ref.i groff -ms -dpaper=a4 -k -t -p -R -Tpdf $^ > $@
+%.pdf: %.ms Makefile
+	REFER=ref.i groff -ms $(PREPROC) $(PDFOPT) -Tpdf $< > $@
 	-killall -HUP mupdf
 
 %.utf8: %.ms
-	REFER=ref.i groff -ms -t -p -R $(TTYOPT) -Tutf8 $^ > $@
+	REFER=ref.i groff -ms $(PREPROC) $(TTYOPT) -Tutf8 $^ > $@
 
 %.ascii: %.ms
-	REFER=ref.i groff -ms -t -p -R $(TTYOPT) -Tascii $^ > $@
+	REFER=ref.i groff -ms -c $(PREPROC) $(TTYOPT) -Tascii $^ > $@