Google reCaptcha is en excellent way to protect your site from spam generated by automated bots. In particular, reCaptcha prevents bots from filling in certain forms and creating accounts. wp2print has built-in support for both v2 and v3 of Google reCaptcha which protects the following pages:
This is an example of the Login and Registration forms protected by v2 Google reCaptcha:
Here are the steps to implement reCaptcha with wp2print: