man pngquant (Commandes) - PNG image optimising utility

NAME

pngquant - PNG image optimising utility

SYNOPSIS

pngquant [ options ] <ncolors> [pngfile [pngfile ...]]

pngquant [ options ] -map mapfile [pngfile [pngfile ...]]

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.

AUTHOR

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

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