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You most certainly can use QR codes to store data, using Version 40 QR codes. I'm sure PaperBack and QR codes have much in common. Also, QR codes let you adjus
by isomorphic 11y ago
You most certainly can use QR codes to store data, using Version 40 QR codes. I'm sure PaperBack and QR codes have much in common. Also, QR codes let you adjust the level of error-correction that you want.
Even if a QR code has a maximum size, you could use more than one per page.
https://en.wikipedia.org/wiki/QR_code#Design https://en.wikipedia.org/wiki/QR_code#Design
I'm sure there are other 2D barcodes that could be used for this application. E.g., Data Matrix (also in the public domain).
https://en.wikipedia.org/wiki/Data_Matrix https://en.wikipedia.org/wiki/Data_Matrix