1, the contract signed by yourself is valid according to the fingerprint. No matter whether the agreement is printed or handwritten, the law does not stipulate that it will take effect as long as both parties sign it. It is best to sign each copy with a handprint, and as long as it is voluntary by both parties and the content does not violate the law, such an agreement will be legally binding after being signed by both parties.

2. Legal basis: Article 490 of the Civil Code of People's Republic of China (PRC). If the parties conclude a contract in the form of a contract, the contract shall be established when the parties sign, seal or print their fingerprints. Before signing, sealing or fingerprinting, one party has fulfilled its main obligations, and the contract is established when the other party accepts it.

Second, is it illegal to sign on behalf of others?

1. According to the authorization of the licensor, it is legal to sign on behalf of the licensor. This phenomenon is very common in real life. Some are trivial matters of life, others are important economic activities and important matters, and the client authorizes others to sign them. For example, it is normal for customers to give their ID cards and power of attorney to customers to pick up express mail or even sign contracts.

It is illegal to sign on behalf of others without the entrustment or authorization of the client. Seriously, you should bear criminal responsibility. For example, if a national civil servant signs an important request without the consent, approval or authorization of the person who has the right to deal with it, causing heavy economic losses or casualties, he will bear criminal responsibility.