> i suspect that convert has problems handling the 1bit color space Convert always has heaps of problems, different with each minor version. ImageMagick would be so much better as software instead of bugware.
> converting to jpg forces 24bit colors and i then managed to create > a readable smaller version from the jpg like this: > > convert -colors 2 -geometry "1000x1500>" ad.jpg ad-small.png In my experience you can further reduce the file size considerably by using 8 or 16 colours instead of 2. It uses anti-aliasing effects (characters go gray aroung the edges), which allows to drop the image size (in pixels) by much more than it costs to go up to more than 2 colours. Try this: convert -geometry 40% -colorspace gray -colors 8 ad.tiff ad-aa.png Version: @(#)ImageMagick 5.4.2 01/01/02 Q:16 http://www.imagemagick.org It works directly from tiff (in fact that is even slightly smaller than via jpeg). The resampling to 40% and/or the colorspace spec converts it into gray with more than 2 colours. http://volker.dnsalias.net/tmp/winux-ad-antialias.png Although yours is smaller, mine is much more readable ;) Personal preference of course, but I prefer the readability over 30k saved. Volker -- Volker Kuhlmann
