The recent pandemic has also popularized the use of QR codes. For example, when you want to eat at a restaurant or want to buy avocado juice, the waiter will show you a piece of paper with a QR code in it and ask you to use your cellphone and scan it. Immediately a menu of food or juice drinks will appear on your cellphone screen, then you can order directly from your phone. QR codes will soon become a trend in our promotions and transactions. With over 90% increase in QR Code usage since 2018 till now, there is no denying this is a touch-free new world. What is a QR code? A QR code is a type of matrix barcode invented in 1994 by the Japanese automotive company Denso Wave. A barcode is a machine-readable optical label that can contain information about the item to which it is attached. Short for quick response, a QR code is a scannable barcode that stores data. In marketing, they are commonly used to direct users to websites, social media profiles, or store coupons. Fo...