This package installs X11 support library which adds the following
devices to the installed Ghostscript:

  x11, x11alpha. x11cmyk, x11mono, x11_, x11alt_, x11cmyk2, x11cmyk4,
  x11cmyk8, x11rg16x, x11rg32x, x11gray2, and x11gray4.

WWW: http://www.cs.wisc.edu/~ghost/doc/GPL/index.htm
     http://www.ghostscript.com/