The WooCommerce Print Invoice & Packing list extension is the ultimate tool to handle invoices, packing lists, and pick lists in your WooCommerce store. This plugin allows you to easily print documents for orders straight from the Orders page (individually and in bulk), while editing orders, and allows customer to view invoices from the “My Account” page.
Including invoices with shipped orders allows you to provide important order and policy information to customers when they receive their purchases. Print Invoices & Packing Lists takes all of the effort out of providing order information to customers so that you can bulk print the documents you need with only two clicks.
However, this won’t only help your customers. Packing Lists for individual orders and combined pick lists will help you speed up your fulfillment process, as order items are sorted by product category for efficient picking and packaging, letting you gather orders and double-check them for accuracy.
see for more details