green

[phd-thesis.git] / Makefile

diff --git a/Makefile b/Makefile
index 74e9bd3..e167b5d 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -2,3 +2,11 @@
        convert $< -set colorspace Gray -separate -average $@
 %g.png: %.png
        convert $< -set colorspace Gray -separate -average $@
+%g.pdf: %.pdf
+       gs \
+               -sDEVICE=pdfwrite \
+               -sProcessColorModel=DeviceGray \
+               -sColorConversionStrategy=Gray \
+               -dOverrideICC \
+               -o $@ \
+               -f $<