Printing FBM labels with packing information

Hello, we have been selling FBM and FBA for quite a while. We have been doing alright! We are expanding and hiring a shipper. We would like for them to be able to take a labeled bag to the shelves and grab what they need. I would like to have Packing list printed on the label itself. I have seen in the past on how to bootstrap it, can’t find it now. I have seen a few different sites offering to run through their site and they will print for you. I have concerns about that. Is there a way to do this?