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QR Codes (Quick Response Codes) are two-dimensional barcodes that can easily be read by devices with a scanner or camera and where created for simple but quick data entry to perform a quick task. You can read the Wikipedia Page on QR Codes here.
QR Codes are most commonly used to link the physical world with the digital world in a quick and easy to use way. Such examples are scanning a QR code you find in a magazine to visit a product page on a website, or scanning a QR code on a food menu to view pictures of the food.
You can store virtually any type of textual data in a QR code which include website addresses, VCard information, SMS templates, etc, or just plain text.
Denso Wave, a subsidary of the Toyata supplier Denso, created the QR Code in 1994 to make marking components for logistical purposes with a view to speed up the manufacturing process.
Dynamic QR Codes are QR codes that don't change in their visual appearance once created, but can change in what they do in the future. For example, you may need a dynamic QR Code if you want to change your website address in the future but don't want to update your brochure that show your QR Codes. Replacing printed QR Codes when web address change etc can be very expensive.
QR codes can be scanned in a number of ways but the most common is by using a QR Code Reader on your phone or tablet. You'll be able to download a wide selection of QR Code Reader apps from your phone's app store which will download to your phone ready to use. Simply open the app, start a scan, point the camera towards the QR Code and the app should handle the rest.
QR Codes are very useful in a large number of different places. You'll most commonly find QR Codes in things like magazines, newspapers, leaflets, brochures, business cards and billboards.
Making a QR Code is actually very easy. To get started simply enter some text in the box above and generate your QR Code with a click of a button. You can also use phone apps to make QR Codes and there are plenty available in your phones app store.
Using a QR code in your online offers and deals to save people money is a really effective way to get some exposure. For example, here in the UK we use a service called DealFeed Deals & Prices to produce daily lists of the latest price reductions and offers from popular retailers such as Argos, Currys, Very and AO. We then use QR codes to push these promotions to provide low prices for household appliances to UK consumers.
QR Codes can be customized to a certain extent and you can change background, foreground, eye colors (the squares at the top & bottom left, and top right) and even add logos to the center and customize what appears around the QR Code such as borders, graphics etc. You can also adjust the padding and pixel size of the dots too.
It's possible to track the scans and uses of QR Codes but this requires most codes to be dynamic QR Codes. By using dynamic QR Codes we can serve up the correct content with each scan while tracking things like visitor count, device and dates etc.
QR Codes can be created in a few formats but they work best in something called a scalable graphics format, which means they don't loose quality once you scale them in size. Such scalable formats include SVG and EPS.
You can also create QR Codes in lossy graphic formats which means the quality will probably degrade if you try to scale them in size. Such lossy file formats for QR Codes include PNG and JPG.
If you intend to use your QR Codes generated here for print then we recommend you use the vector formats available (SVG & EPS formats) as these will scale correctly when used by publishers.