The taking of an acknowledgment consists of positively identifying the signer of a document. This instrument was acknowledged before me on ______(date) by.(name of person acknowledged.) (Seal). Learn how to use a notary acknowledgment sample to ensure your legal documents are accurate, valid, and protected against fraud. If there is no signature, watch the signer sign the document. 4. Record the notarization. An Illinois notary acknowledgment form certifies the authenticity of signatures inscribed on a legal document. An Illinois notary acknowledgment form is a written authentication from a notary that the signature on a document belongs to the signer. The name of the corporation should appear in the seal. 800-252-8980 (toll free in Illinois).