Program for chunk-level PNG manipulation. Strips out ancillary information (eg. EXIF tags).
usage: __main__.py [-h] [-o OUTPUT] [--include-useful] [INPUT]
positional arguments:
INPUT input PNG file to read from, by default stdin
optional arguments:
-h, --help show this help message and exit
-o OUTPUT output PNG file to write to, by default stdout
--include-useful include useful chunks too (not recommended)
By default it lets through bare-minimum of chunks required for proper functionality (IHDR, IDAT, IEND, PLTE)
and chunks that it deems useful (gAMA, tRNS, iCCP) if --include-useful is specified. All other chunks are
discarded to maintain standard compliance.