Order Printer Pro has been updated so you can include a downloadable PDF invoice into the new Shopify Order invoice email. The Order invoice email can be sent to customers where a payment is pending. This is useful if you allow customers to pay on Net-30 or Net-60 terms, where they will need a PDF invoice before making payment.
Order Printer Pro makes that process fully automated.
Follow the below easy, one-time instructions to get it setup in your Shopify account: