Publisher review:pngcheck verifies the integrity of PNG, JNG and MNG files. pngcheck verifies the integrity of PNG, JNG and MNG files (by checking the internal 32-bit CRCs [checksums] and decompressing the image data);
It can optionally dump almost all of the chunk-level information in the image in human-readable form.
For example, it can be used to print the basic statistics about an image (dimensions, bit depth, etc.);
To list the color and transparency info in its palette (assuming it has one); or to extract the embedded text annotations. It is a command-line program with batch capabilities.
pngcheck 2.2.0 is a C/C++ script for Image Tools scripts design by Greg Roelofs.
It runs on following operating system: Windows / Linux / Mac OS / BSD / Solaris.
pngcheck verifies the integrity of PNG, JNG and MNG files.
Operating system:Windows / Linux / Mac OS / BSD / Solaris
pngcheck 2.2.0 script details 
