Be sure to print it if necessary. It is to write one's own name, especially to express agreement, recognition, responsibility or obligation. The purpose of signing is to prevent disputes and prove that the signing of the agreement is a true expression of will. If the signature and handprint are combined, in many cases, in order to prevent disputes between the two parties on key figures, dates and other important information in the agreement in the future, both parties will choose to press handprints at key positions in the agreement to show their approval of the content.