Legal analysis
The act of fraudulently using someone else's signature may have been done by everyone in daily life. Although it may not have any impact, in fact, if you use someone else's signature under certain circumstances, it may constitute a crime and bear criminal responsibility. For example, when signing a contract, it may constitute contract fraud or other corresponding financial fraud or bill fraud. If it is in the course of litigation, it may constitute the crime of obstructing testimony and perjury. If it is a fake star signature for sale, it should be an infringement of the right to name, and if the amount is particularly large, it can also be considered as fraud. If someone else pretends to be my signature without my knowledge, I won't ratify it, I won't bear legal responsibility, and the signatory will bear the responsibility; If it is approved, I should bear the responsibility. Signing on behalf of the agent is the behavior. If I don't know, I have no right to represent and I don't bear legal responsibility. However, if I know that someone else signed my name without denying it, or that I ratified it, the signature is binding on me and I should bear legal responsibility. Signing on behalf of the agent is the behavior. If I don't know, I have no right to represent and I don't bear legal responsibility. However, if I know that someone else signed my name without denying it, or that I ratified it, the signature is binding on me and I should bear legal responsibility. If someone else uses your signature without authorization, you don't have to bear the legal responsibility of signing, and the responsibility of signing is borne by the actual signer.
legal ground
Article 172 of the Civil Code of People's Republic of China (PRC) * * * The agent still acts as an agent without agency, beyond agency or termination of agency. If the counterpart has reason to believe that the agent acts as an agent, the agency act is valid. Article 171 Where an actor has no agency, exceeds the agency or remains an agent after the agency is terminated, it shall not be effective to the principal without ratification by the principal.