Signature and fingerprint are the ways to confirm and prove the contents of a document.

Signature and fingerprint are a common practice to confirm and prove an individual's agreement and confirmation of the contents of a document. Signing is to write your name on the document in a clear and easy-to-read font to ensure the identity and will of the signer. The signature should be completely consistent with the name, and the location and format should be arranged according to the requirements of the document. The handprint is performed after the signature as further confirmation of the signature.