Print detailed information about and verify PNG, JNG, and MNG…
Print detailed information about and verify PNG, JNG, and MNG files. More information: http://www.libpng.org/pub/png/apps/pngcheck.html.
pngcheck {{image.png}}
pngcheck -c {{image.png}}
pngcheck -cvt {{image.png}}
cat {{path/to/image.png}} | pngcheck -cvt
pngcheck -s {{image.png}}
pngcheck -x {{image.png}}