Some email clients won't show the Base64-encoded QR-Code. There are comments in the code how this could be solved in the future (by attaching an image file). However due to limited resources (this is a voluntary non-profit project) this problem unfortunately stays unresolved.
For those who use plugins which create PDFs - such as for invoices you can use the Hook to integrate the QR-code into your PDF as described in the readme:
https://github.com/Coernel82/SEPA-QR-for-Woocommerce/blob/main/README.md#hooking-into-other-plugins
Some email clients won't show the Base64-encoded QR-Code. There are comments in the code how this could be solved in the future (by attaching an image file). However due to limited resources (this is a voluntary non-profit project) this problem unfortunately stays unresolved. For those who use plugins which create PDFs - such as for invoices you can use the Hook to integrate the QR-code into your PDF as described in the readme: https://github.com/Coernel82/SEPA-QR-for-Woocommerce/blob/main/README.md#hooking-into-other-plugins