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Have you seen an image like this somewhere? On an print ad, maybe? Or on the flipside of a calling card? It may look like a fuzzy painting by a drunk artist, but it actually is an information barcode, also known as QR code, that can be scanned. Point your smartphone camera at the QR code, and if it has the right software, the code will yield up its secrets — a phone number, an address, a discount offer... One software that reads QR codes is available at http://get.scan.me, for Windows, Android and iPhones. But how can you generate a code that you can put on your stationery?
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