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.

                                         31 January 2023                                 PNGCP(1)