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