Depending on the error correction rate of a QR Code, up to 30% of it may be destroyed or altered without affecting its readability. This technical feature allows inserting a logo that covers parts of the Code structure.
The higher the error correction rate, the more characters must be encoded to keep it readable. This may increase the required space and print size of the QR Code.
The error correction rate is set to 30% for QR Codes with logos and 7% for Codes without logos.
To manually select the error correction rate for a QR Code:
1. In the Manage view, click on Download next to your QR Code.
2. Click on All Formats.
3. Go to Advanced options and set your error correction rate.
4. To download the QR Code, click on your preferred file format.