This tool allows Pennsylvania notaries public and prospective notaries public to apply for and renew their notary commissions in an efficient paperless process. Detailed interactive instructions on how to fill out a Pennsylvania Notary application.In this video, we show you how to properly fill out your notary application! 1. Read the instructions carefully before filling out the form. The County Clerk's Office assists customers applying to become a notary public. Our office does not notarize documents.