QR Code

It is a very clever way to pass a URL for someone with a smart phone! Also, it is very easy to generate such oneself with Google image chart editor.

QR code data capacity

Numeric code Max. 7,089 characters

Alphanumeric Max. 4,296 characters

Binary (8 bits) Max. 2,953 bytes

Error correction capacity

Level L – 7%

Level M – 15%

Level Q – 25%

Level H – 30%

% of codewords can be restored.

QR codes use the Reed–Solomon error correction so even slightly damaged.