Website Builder handles your Ecommerce needs from end-to-end. PDF of invoices are created on the fly for a transaction marked as complete, and made accessible automatically at that point within the customer's private area. These invoices use an invoice template as defined in the STORE/config menu panel. Invoices reflect store configuration options such as tax configuration labels or display options (included/not included).
Edit your invoice template provided with the theme skeleton, and feel free to add Website ID card tokens or other text or image information.