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April 8, 2022 PNG

Inject arbitrary data into PNGs

Inject arbitrary data into PNGs, without breaking the PNG spec.

For technical details on how this works, and outdated Python 2
code, read this blogpost.

original from 2016

How to use

Listing PNG chunks

~ ./punk.py list source.png
Chunk IHDR, 13 bytes
Chunk IDAT, 226876 bytes
Chunk IEND, 0 bytes

Injecting data

 

To finish reading, please visit source site

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