pngtopnm (1)
convert a Portable Network Graphics file into a portable anymap
SYNOPSIS
pngtopnm
[-verbose]
[-alpha | -mix]
[-background color]
[-gamma value]
[-text file]
[-time]
[ pngfile ]
DESCRIPTION
Reads a Portable Network Graphics as input.
png
Produces a portable anymap as output.
The type of the output file depends on the input file - if it's
black & white, a
pbm
file is written, else if it's grayscale a
pgm
file, else a
ppm
file.
OPTIONS
SEE ALSO
NOTE
Instead of pngtopnm|pnmtoxxx, a specific converter should be used, if
available. E.g.
ptot
(PNG to TIFF conversion), etc.
BUGS
There could be an option to read the comment text from pnm comments instead
of a separate file.
The program could be much faster, with a bit of code optimizing.
AUTHORS
Copyright (C) 1995-1997 by Alexander Lehmann
and Willem van Schaik.
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