> Imagemagick does the job. > > Command I used was this: > > convert -colors 2 -density 600x600 -colorspace gray -compress group4 > pg_0015.pdf pg_0015.tif > > The tif files generated are bitonal and the djvulibre bitonal > algorithm cjb2 works fine on them. > > Was not able to batch, so I used openoffice spreadsheet to generate a > script containing 774 lines for the 774 images I had to convert. :-)
You could run a bash script something like this WARNING - UNTESTED for i in *.tiff; do echo "converting \"$i\"..."; convert "$i" -colors 2 -density 600x600 -colorspace gray -compress group4 "bitonal-$i"; done Owen _______________________________________________ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
