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.An Apostille is a certificate that authenticates the signature of a public official or a notary public on a document for use in another country. • Document signed. I'm going to take a minute here and we're going to cover how to properly do an all-purpose acknowledgement for the state of California. Sign in the right-hand box to indicate your acknowledgement and agreement to each statement. Complete Signature page (page 7). The taking of an acknowledgment consists of positively identifying the signer of a document.