.TH PNG-FIX-IDAT-WINDOWSIZE "1" "October 2020" "png-fix-IDAT-windowsize 1.0" "User Commands"
.SH NAME
png-fix-IDAT-windowsize \- utility to reset first IDAT's zlib window-size bytes and fix up CRC to match.
.SH SYNOPSIS
.B png\-fix\-IDAT\-windowsize
.RI [ options ]
.I pngfile
.RI [ pngfile \ ...]
.SH DESCRIPTION
png\-fix\-IDAT\-windowsize, version 1.0 of 31 October 2020, by Greg Roelofs.
.PP
Uses explicit, hardcoded compression settings and line filters, writing
result to output file with extension "\-fixed.png".
.PP
This software is licensed under the GNU General Public License.
There is NO warranty.
.SH OPTIONS
.TP
.B \-force
overwrite existing output files
.TP
.B \-verbose
print more status messages (synonym:
.BR \-noquiet )
.SH "SEE ALSO"
.BR pngcheck (1),
.BR pngsplit (1)