Change the scale and margin of your QR code. The scale represents the amount of pixels each square of the QR code will take. The margin represents the amount of white space around the QR code.

Choose the dark and light colors of your code. Please note that using colors other than white and black might make your code harder to scan.

Error correction capability allows to successfully scan a QR Code even if the symbol is dirty or damaged. The percentage indicates the maximum amount of damaged surface after which the symbol becomes unreadable.