Tip

Use the “gs -h” command to check for all built-in “devices” on your Ghostscript version. If you specify a parameter of -sDEVICE=png256 on your Ghostscript command line, you are asking Ghostscript to convert the input into a PNG file. Naming a “device” on the command line is the most important single parameter to tell Ghostscript exactly how it should render the input. New Ghostscript versions are released at fairly regular intervals, now by artofcode LLC. They are initially put under the “AFPL” license, but re-released under the GNU GPL as soon as the next AFPL version appears. GNU Ghostscript is probably the version installed on most Samba systems. But it has some deficiencies. Therefore, ESP Ghostscript was developed as an enhancement over GNU Ghostscript, with lots of bug-fixes, additional devices, and improvements. It is jointly maintained by developers from CUPS, Gimp-Print, MandrakeSoft, SuSE, Red Hat, and Debian. It includes the “cups” device (essential to print to non-PS printers from CUPS).