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.
Things You'll Need
- Image manipulation software
Visit an online QR bar code generator (see Resources for options).
Select the type of information to be encoded, such as a URL, phone number, text message or other contact information.
Enter the information and press the "submit" or "generate" button (depending on the generator used).
Save the generated QR bar code onto your computer.
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.
Tips & Warnings
- The more information stored in a QR code, the larger it needs to be to be read correctly.