# GNU Make file

# Convert scanned PBM image to compact TIFF fax group 4
# If successful, remove PBM file
%.tif:	%.pbm
	pnmtotiff -g4 < $< >$*.tif && rm $*.pbm

# Reduce to half resolution and convert to transparent GIF
# This is for presentation with WWW
%.gif:	%.tif
	tifftopnm < $< | \
	  pbmreduce 2 | \
	  ppmtogif -transparent rgbi:1/1/1 >$*.gif