You can try various things: add -type palette to your command line after the +append
or preface the output image with PNG8:secoora.full.qkm_sst.png or look at the write options for PNG at http://www.imagemagick.org/Usage/formats/#png_write I suspect that IM will take the colortable from the first image in the sequence if you do one of the above, but I am not an expert on that, so don't count on it. But do get back and inform us if this works or not. >optics 193 :/optics1/virtual_ant/etc/cl> convert secoora.west.qkm_sst.png >secoora.east.qkm_sst.png +append secoora.full.qkm_sst.png _______________________________________________ Magick-users mailing list Magick-users@imagemagick.org http://studio.imagemagick.org/mailman/listinfo/magick-users