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PNG-FIX-IDAT-WINDOWSIZE(1) User Commands PNG-FIX-IDAT-WINDOWSIZE(1)

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)
October 2020 png-fix-IDAT-windowsize 1.0