Bold Order Manager is no longer available to install on the Shopify App Store. If you already have Bold Order Manager installed, you will be able to continue using it as it is grandfathered on your store.
No, unfortunately not, many postal and courier services provide the ability to create shipping labels through their respective websites. You may be able to download and save an image of the generated shipping label and attach the file to the order. You can Print a Packing Slip with Order Manager and Print an Invoice with Order Manager.