To install the add-on, follow the instructions from Installing Add-ons from X-Cart App Store.
Once the add-on has been installed, proceed to the settings page to configure it.
Invoice file name pattern: This field allows renaming the default PDF invoice filename to any store-specific one if required. Use the [orderNumber] text pattern to provide the order number position.
Send the invoice attachment in the mail: If enabled, X-Cart will attach a PDF invoice file to every email (to both admin and customer) that contains an order link.
Submit the settings to make them active.