|Customized vCard QR Code|
- Email address, URL, web site, IM
- Company, department, title
- Street, city, state, ZIP code, country
- Notes, birthday, etc.
A word of caution to avoid wasting a lot of time - the more information in a QR code, the larger the printed image must be. As the amount of information increases, the module (smallest square element) size decreases for a fixed size of QR code. One reference suggests that for a QR code containing only a URL the minimum print size should be 1.25 x 1.25 inches. A vCard QR code may need to be a minimum of 4 x 4 inches to be compatible with the resolution of the majority of smart phones.