According to the relevant information, the query shows: use a fingerprint collector. The image obtained by the fingerprint collector can be fingerprinted on the electronic document. According to the relevant provisions of China's Electronic Signature Law, when signing electronic contract documents, if it is a contract that can be signed electronically according to the law, even if there is no fingerprint, as long as the parties agree to confirm the establishment of the contract, the electronic contract will have legal effect.