NAME

       pngquant - PNG image optimising utility

SYNOPSIS

       pngquant [ options ] <ncolors> [pngfile [pngfile ...]]
       pngquant [ options ] -map mapfile [pngfile [pngfile ...]]

       Note  that  it's  required  to  specify  the  number of colors (<ncolors>) or the mapfile.
       Arguments in square brackets are optional.

DESCRIPTION

       This manual page documents briefly the pngquant command.

       pngquant quantizes one or more 32-bit RGBA PNGs to 8-bit (or  smaller)  RGBA-palette  PNGs
       using  either  ordered  dithering  or  Floyd-Steinberg  diffusion dithering (default). The
       output filename is the same as the input name except that it ends in -fs8.png or  -or8.png
       (unless  the  input  is  stdin, in which case the quantized image will go to stdout).  The
       default behavior if the output file exists is  to  skip  the  conversion;  use  -force  to
       overwrite.

OPTIONS

       -force Overwrite existing output files.

       -ordened, -nofloyd, -nofs
              Use ordered dithering.

       -verbose, -noquiet
              Print status messages.

       NOTE:  the -map option is NOT YET SUPPORTED.

EXAMPLE

       Creating a new image with the number of colors reduced to 64:

            pngquant 64 image.png

       The resulting image will have 64 colors and will be saved as image-fs8.png.

AUTHOR

       pngquant was written by Greg Roelofs <newt@pobox.com>.

       This  manual page was written by Nelson A. de Oliveira <naoliv@debian.org>, for the Debian
       project (but may be used by others).

                                 Thu, 07 Dec 2006 00:33:40 -0200                      PNGQUANT(1)