Encoding and Error Correction
The Kendo UI for Angular QR Code supports different encodings and error correction levels.
Value Encoding
By default, the QR Code value is encoded by using "ISO_8859_1", which supports all characters from the ISO/IEC 8859-1 character set. To enable support for all Unicode characters, set the encoding to "UTF_8".
The UTF-8 encoding is not included in the specifications and is not supported by all readers.
The following example shows how to set the encoding:
Error Correction Level
QR Codes provide error correction and recovery that allow partially damaged or covered QR codes to remain readable. Each successive error correction level improves the chances of the reader to recover the original information:
"L"—7% of the data can be restored."M"—15% of the data can be restored."Q"—25% of the data can be restored."H"—30% of the data can be restored.
If you expect part of the code to be covered, for example, when using overlays, use a higher error correction level. The QR Code size may need to be increased to accommodate the additional information.
To set the error correction level, use the errorCorrection attribute:
