This is a general purpose library. While bits and pieces of PDF form filling can be found throughout the Internet. A complete solution was not found. This library emerged from the necessity to automate the filling of forms for a COVID vaccine clinic. A large portion of this README is intended to assist those who are trying to do the same. If you are interested in the mechanics of PDF form filling please see the companion blog article
The chief reason If you need assistence setting up automated forms for a vaccination POD please open up an issue. This way you question may also inform others attempting the same thing.