Ghostscript version 2.6.1 (5/28/93)
Copyright (C) 1990-1993 Aladdin Enterprises, Menlo Park, CA.
Usage: gs [switches] [file1.ps file2.ps ...]
Available devices:
    deskjet djet500 djet500c cdeskjet cdjcolor cdjmono cdj500 cdj550
    paintjet pj pjxl pjxl300 laserjet ljet2p ljet3 ljetplus
    bj10e bj200 lbp8 declj250 la50 la75 ln03 lj250
    epson eps9high epsonc escp2 necp6 dfaxlow dfaxhigh ibmpro
    jetp3852 m8510 r4081 oki182 t4693d2 t4693d4 t4693d8 tek4696
    appledmp bit bmpmono bmp16 bmp256 bmp16m gifmono gif8
    pcxmono pcx16 pcx256 pbm pbmraw pgm pgmraw ppm
    ppmraw tiffg3
Most frequently used switches: (you can use # in place of =)
    @<file>              treat file like part of the command line
                           (to get around DOS command line limit)
    -d<name>[=<token>]   define name as token, or null if no token given
    -f<file>             read this file even if its name begins with - or @
    -g<width>x<height>   set width and height (`geometry'), in pixels
    -I<prefix>           add prefix to search path
    -q                   `quiet' mode, suppress most messages
    -r<res>              set resolution, in pixels per inch
    -s<name>=<string>    define name as string
    -sDEVICE=<devname>   select initial device
    -sOutputFile=<file>  select output file: embed %d for page #,
                           - means stdout, use |command to pipe
`-' alone as a file name means read from stdin non-interactively.
For more complete information, please read the use.doc file.