An acknowledgment is one of the most common types of notarial acts, but it often confuses Notaries. Here are 5 steps to performing an acknowledgment.This 5-step guide will teach you how to notarize a document that requires an acknowledgement (the most common notarial act). This article and video will show Notaries to fill out each part of a notarial certificate, and common mistakes to avoid. Acknowledgment of Instruments. The Pennsylvania Notary Acknowledgment form is a legal document that verifies the identity of individuals signing a document, ensuring their consent. Edit, sign, and share pa acknowledgment online. No need to install software, just go to DocHub, and sign up instantly and for free. Your acknowledgment receipt should contain the names of the issuing party and the person receiving the document.