pngcheck

Validate PNG, JNG, and MNG image files and display detailed metadata.

brewmacoslinux

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Print info and check PNG, JNG, and MNG files

pngcheck

check if a PNG file is valid and not corrupted$ pngcheck image.png

show detailed information about a PNG file$ pngcheck -v image.png

check all PNG files in a directory$ pngcheck *.png

validate PNG and show verbose output with chunk details$ pngcheck -vvv image.png

check multiple image formats including JNG and MNG files$ pngcheck image.png photo.jng animation.mng