Is this an image? Or is it a gun?
With just a few lines of code, the above image can be converted back into the STL files for the Liberator, a 3D-printable gun created by Defense Distributed.
This project is meant to remind politicians, bureaucrats, and busy-bodies everywhere that attempting to restrict distribution of code is both pragmatically preposterous and a violation of free speech.
For bonus points, this file was also uploaded to LBRY, ensuring that a record of it persists via blockchain.
php pack.php <filepath>
This will create a PNG at <filename>.png.
php unpack.php <imagepath>
This will take a PNG located at <imagepath> and turn it back into the source file.