(Seal). Given under my hand and seal of office this _____ day of ______, 20____. (Notary's Signature).(Personalized Seal). 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. " A witness should be present to sign as well. This article and video will show Notaries to fill out each part of a notarial certificate, and common mistakes to avoid. "Do you, John Doe, acknowledge signing this document willingly, for the purposes and consideration stated in it? " Individual capacity: An individual (principal). A Texas notary acknowledgment is a certificate a notary public uses to verify the signature and identity of a document's signatory.