Which document must a notary sign when notarizing a signature?

When notarizing a signature, it is essential for the notary to include their official signature and stamp on the document being notarized. This is a critical requirement because the signature and seal affirm the notary's acknowledgment of the signatures being notarized and the circumstances under which the notarization took place. The notary's seal serves as a confirmation that the notary is authorized to perform that function and that the act is officially recognized.

The notary's official signature and stamp provide legal protection to all parties involved, as they attests to the identity of the signer and the validity of the document. By including this information, the notary enhances the credibility and integrity of the notarization process, ensuring that the document can be reliably used in legal or official matters.

Incorporating other items, such as the client's original application or a government-issued ID, while important for verifying identity and other aspects of the notarization process, does not fulfill the requirement for the notary to sign the document itself. Additionally, a certificate of authenticity may serve as a supplementary or separate document but is not a necessary component of the notarization process. Thus, the requirement for the notary's official signature and stamp is what clearly defines the completion of the notarization.