Revision of Free software and 2-D barcodes from Sat, 02/16/2008 - 02:30

You've probably seen them: black and white checkerboard-patterned matrices printed on labels and other real-world objects that you can optically scan with a cameraphone or other handheld device to extract an encoded message. But although 2-D barcodes (as they are known) are getting more common, working with them is still a bumpy road for the Linux and free software crowd. Fortunately, several options exist for reading and generating them with open source software.