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    The goal is to provide a PNG library with a simpler API than libpng.

    That should be easy. :)

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      In defense of the original authors, the PNG format and reference implementation was hacked out in a single weekend, after Unisys began threatening owners of web sites that used GIF images.

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        I know why they do some things the way they do. libjpeg is pretty similar. And they have pretty good reasons for much of it. But I still sigh every time I copy the same blob of code into a project.