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Find PNG files with suspicious data in alpha channel
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Latest commit 2682d05 Feb 15, 2020
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examples add examples Feb 7, 2020
LICENSE Initial commit Feb 4, 2020 fix golem link Feb 15, 2020


GIMP has an unexpected behavior that when "deleting" content from an image with an alpha channel it will not actually delete the content, it will just be marked transparent.

This can have the unintended sideeffect of leaking information if you use GIMP to remove private parts of an image, e.g. a screenshot.

With this script you can go through a list of images (e.g. from a Twitter data export) and check images that might have such hidden content.



Written by Hanno Böck,

License: The Unlicense (meaning do with it whatever you like)

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