Data --> Paper and back for Linux

Caleb Marcus caleb.marcus at
Tue May 27 22:03:01 UTC 2008

I'm wondering if there's any software available that will take data,
produce an image that can be printed, and allow a scanned version of it
to be converted back to data. There's always base64 and OCR, but I'm
wondering if there's anything that'll get higher usable density. I'm
thinking of making something like this for fun, but it'll be difficult,
and it would be nice to look at previously-done examples of it.
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