Mobile phone photos are a type of electronic data. Adding signatures and seals to such electronic data is a type of electronic signature and electronic signature.

If you need this signature and seal to have legal effect, you need to find a third-party service platform to encrypt the electronic file, and then electronically sign and sign the encrypted file.

Article 13 of the "Electronic Signature Law": If an electronic signature meets the following conditions at the same time, it will be regarded as a reliable electronic signature.

1. True identity: When the electronic signature production data is used for electronic signature, it is exclusive to the electronic signer;

2. True intention: The electronic signature production data is only generated by the electronic signature when signing. Controlled by the signer;

3. The contract has not been changed: any changes to the electronic signature after signing can be discovered;

4. The signature has not been changed: the content and form of the data message have been changed after signing Any changes can be detected.

The parties may also choose to use an electronic signature that meets the reliability conditions agreed upon by them.

You can also apply for electronic seals!

1. Application for electronic seal: For the electronic seal issued by the three institutes, you can submit information application through the relevant government entrance, the three institutes and the designated electronic signature service provider.

2. Physical seal rubbing: The production of physical seal requires a sample of the company's physical seal, and the sample must be clear, complete and identifiable.

2. Produce electronic seal data: effectively bind the digital signature of the electronic document content to the electronic seal image through digital watermarking, encryption and other technologies to prove that the electronic seal is connected with the enterprise or individual relationship between.

3. Electronic seal filing: The electronic seals produced by the three institutions will be uniformly filed, and a record will be formed when the electronic seal is used. And others can check the seal status through the registration number.

4. Electronic seal issuance: Electronic seals are issued through user application channels.

If it does not require legal effect, you can handwrite a signature on a white paper, stamp it, then obtain the picture, use online tools to cut out the picture, cut out the picture without background and cut it to Just put it on the photo!