Printing orders
You can print your order documents, such as custom invoices, shipping labels, receipts, and packing slips using the Shopify Order Printer app. You can also print and customize packing slips directly from your Shopify admin.
While you can print finalized orders directly from your Shopify admin for record-keeping or to include them in shipments to customers, printing draft orders isn't supported. Draft orders must be completed and finalized before they can be printed.