Code QR

Des outils on-line pour générer un QRCode

http://www.morovia.com/free-online-barcode-generator/qrcode-maker.php

http://goqr.me/fr/

sudo apt-get install qrencode

qrencode - Encode input data in a QR Code and save as a PNG image.

EXAMPLES

qrencode -l L -v 1 -o output.png 'Hello, world!'

encode into a symbol version 1, level L.

qrencode -iSv 1 –output=output.png

read standard input and encode it into a structured-appended symbols in case-insensitive mode.