NAME

       pngcp - create a new PNG file, having changed some attributes

SYNOPSIS

        pngcp [-d <depth>] [-s <samples per pixel>] <input filename> <output filename>

DESCRIPTION

       The  pngcp  create a new PNG file using the image data from the input file. The output file will have the
       bitdepth and number of samples per pixel as specified on the command line. There are limits on what is  a
       valid combination imposed by the PNG specification -- pngcp will inform you of invalid combinations.

       Samples with more than eight bits are not correctly handled at the moment.

RETURNS

       Nothing

EXAMPLE

       pngcp toucan.png new.png

SEE ALSO

       tiffcp(1) pngchunkdesc(1) pnginfo(1)

VERSION

       This documentation was generated for pngtools 0.2 by autodocbook (http://www.stillhq.com).

AUTHOR

       pngtools  is  under development by Michael Still (mikal@stillhq.com). All code is Copyright Michael Still
       2001 to 2003,  and is released under the GNU GPL. Code submissions are welcomed. Contact Michael  at  the
       address above if you have something you would like to contribute.

BUGS

       There  are no known bugs in pngtools. If you find one, please contact mikal@stillhq.com and let me know.

                                                  22 April 2025                                         PNGCP(1)