Imagine a QR code that instantly makes the person scanning it a fan of a brand, company, or personality on Facebook without ever typing a URL. Google’s also been encouraging the use of QR codes.

Shadow detection has been improved, too — Adobe Scan’s algorithms can distinguish between business cards and hard shadows formed by wayward hands and phones.

QR codes are now vital. They bridge physical and digital realms. Individuals use them for Wi-Fi sharing and contact exchange.

Exchanging business cards is one area of day-to-day business that has yet to see any real transformation. Sure there are various tools that will let you exchange v-cards in real time by bumping ...