NAME

       png-fix-IDAT-windowsize  - utility to reset first IDAT's zlib window-size bytes and fix up
       CRC to match.

SYNOPSIS

       png-fix-IDAT-windowsize [options] pngfile [pngfile ...]

DESCRIPTION

       png-fix-IDAT-windowsize, version 1.0 of 31 October 2020, by Greg Roelofs.

       Uses explicit, hardcoded compression settings and line filters, writing result  to  output
       file with extension "-fixed.png".

       This software is licensed under the GNU General Public License.  There is NO warranty.

OPTIONS

       -force overwrite existing output files

       -verbose
              print more status messages (synonym: -noquiet)

SEE ALSO

       pngcheck(1), pngsplit(1)