pngcheck
A tool to verify the integrity of PNG, JNG, and MNG files and extract detailed information about the image.
pngcheck
A tool to verify the integrity of PNG, JNG, and MNG files and extract detailed information about the image.
Data verified Apr 2026
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pngcheck verifies the integrity of PNG, JNG, and MNG files by checking the internal 32-bit CRCs and decompressing the image data. It can dump chunk-level information in human-readable form, print basic image statistics, list color and transparency info, and extract embedded text annotations. This command-line program has batch capabilities.
pngcheck FAQ
Common questions about pngcheck including features, pricing, alternatives, and user reviews.
pngcheck is A tool to verify the integrity of PNG, JNG, and MNG files and extract detailed information about the image. It is a Security Operations solution designed to help security teams with File Analysis, Steganography.
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