QR Codes - Google Chart Tools / Image Charts (aka Chart API) - Google CodeQR Codes This document describes how to create QR codes using the Chart API. Table of Contents Overview QR codes are a popular type of two-dimensional barcode. They are also known as hardlinks or physical world hyperlinks. QR Codes store up to 4,296 alphanumeric characters of arbitrary text. This text can be anything, for example URL, contact information, a telephone number, even a poem! QR cod
