IM 6 generally uses its settings after an image has been read. The general exceptions are read modifiers that affect the reading of vector images. In your case, you need to set the density before reading the pdf, but once it is read in, you then tell IM to convert it to monochrome before writing the output.
see http://www.imagemagick.org/Usage/basics/#cmdline > > Actually the -monochrome should come after the reading of the input. > >What is the difference betwee having -monochrome in the front and at >the back? Thanks! _______________________________________________ Magick-users mailing list Magick-users@imagemagick.org http://studio.imagemagick.org/mailman/listinfo/magick-users