Issue: When trying to print a Suisse QR bill, if multiple images are presents in document and they have a url as src, some pictures will not be displayed. (Same issue may occur with simple QR code) Cause: It's a known issue with wkhtmltopdf: https://github.com/odoo/odoo/commit/2949138a7d84cd6c925ea1745d62f25ef077bb8b Also, adding css class to body by js break wkhtmltopdf. Solution: Replace link by base64 image value (use a function to retrieve base64 image instead of image_url). Remove class 'l10n_ch_qr' added by js (no need since CSS file didacted to this report). Move `_get_qr_code_base64` and `_get_qr_code_url` logic/flow (since generic) to account module. Move specific logic like `_get_qr_vals` and `_get_qr_code_generation_params` to specific module (ex: l10n_ch). extra: Alter some css for better rendering + update unitest. opw-2620082 closes odoo/odoo#77643 X-original-commit: 699b6eeac993e3a8d97ae7949170f7e18ca05831 Signed-off-by: Olivier Colson <oco@odoo.com>