1) On admin page, tap Settings -> Bistro. Then tap Invoice tab. 2) Invoice tab is the place where you can change font, layout and text on tax invoice for customer. 3) Use "Print logo on top" and "Show invoice barcode" options to add or remove logo and barcode from tax invoice. 4) You can type in header and footer to invoice. 5) Every change can be check on receipt preview section by tapping preview button.
