Use this guide to learn in detail about Error Correction in a QR Code
Error Correction is a property of QR Codes that helps them remain scannable despite damage or dirt.
It also enables the restoration of the data even after there is distortion, dirt, or damage. Hence, a QR Code keeps functioning even when a part of it is removed, damaged, or even obscured with a finger.
Error Correction works by adding backup data to the QR Code mathematically.
There are four levels of error correction:
- Level L: has up to 7% error correction capability
- Level M: has up to 15% error correction capability
- Level H: has up to 25% error correction capability
- Level V: has up to 30% error correction capability
Higher the level of Error Correction, greater will be the scannability and density of the QR Code.
If you're expecting your printed QR Code to undergo wear-and-tear, ensure that that Error Correction Level is set to H or V.
If you still have questions related to this topic, feel free to reach out to our customer relations team at firstname.lastname@example.org.