QR codes, invented by Denso (a subsidiary of Toyota) in 1994, have until now been used for mainly industrial and logistical purposes, in recent years are starring in a boom in marketing and advertising.
What do they consist of?
Barcodes are a series of lines of different thicknesses and spacing that can express a very small set of information (usually less than 12 bytes), while QR codes are (two-dimensional) dot matrices that allow encoding in a very small space. A large amount of information (up to more than 4000 bytes) can be stored within them.
The most common is to use QR codes to include URLs (addresses of Internet sites) within them, but QR codes can also be used to directly send SMS or e-mails, make phone calls, add a contact to the phonebook, etc.
Why are they so popular now?
Thanks to the widespread implementation of smartphones with a camera and an Internet connection, QR codes are currently the easiest and fastest way to ensure that a user can immediately access interactive information and services. For example, focusing on your mobile camera on a QR to visit a web page is much faster and more direct than typing a long and complicated URL on the small and uncomfortable keyboard. Since you can create the custom QR Code, you can better advertise your brand or useful information among users.
Brands and businesses have seen an immediate “call to action” in QR codes, incorporating QR codes into print advertising, store posters, and even Internet banners.
That is, QR codes have been the next step after the inclusion of URLs in offline advertising.
How big should QR codes be?
If we talk about how big QR codes should be, then there is a certain relationship between size, the distance between, and the ability of the scanner.
The size with which we print a QR code will have a direct relationship with the ease and speed with which the user can scan it. If we print it too small, we will surely end up frustrating the public after several attempts with the camera of their smartphone.
The minimum print size of a QR is mainly dictated by the minimum distance from which it can be scanned by the user.
Minimum size = minimum distance /10
For example, a QR on a billboard that does not allow the user to get closer than 12 meters should not be less than 1.2 meters on aside. A QR code on a magazine page, which allows the user to zoom their mobile up to a few centimeters from the page, should not be less than 15 millimeters on each side (smaller sizes are difficult for mobile to focus on).
While printing you must follow the above size practice, or else, your customers or users might face problems while scanning your QR codes.
Thanks to the robust technology on which these dot matrices are based, QR codes need not be boring black and white dot matrices. You can get custom QR Code with different colors, designs and embed your logo within it using the QR Code generator with logo
It is possible to design QR codes that have different colors and even images integrated into them.