How to Make a QR Bar Code

A quick response bar code, or QR bar code, is a two-dimensional (2D) bar code first introduced in 1994 by the Nippondenso Company of Japan. QR codes can store 2,509 numbers or 1,520 alphanumeric characters (numbers, letters and symbols like &, / or *). QR bar codes can be read by any cell phone with an auto-focus camera and an application that can translate the bar code. Several free and paid applications on all six smart phone operating systems translate QR codes.

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Visit an online QR bar code generator (see Resources for options).

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Select the type of information to be encoded, such as a URL, phone number, text message or other contact information.

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Enter the information and press the "submit" or "generate" button (depending on the generator used).

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Save the generated QR bar code onto your computer.

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Open the QR bar code in an image manipulation program and size it to your specifications. Maintain the image bar code portion as a square.