It depends on the way of conversion. It is difficult to judge whether it is valid if it is simply taking photos or scanning handwritten signatures.

If it is converted by electronic signature technology, it is effective.

For example, hand-drawn electronic signatures can be made through the signing platform.

Before making a signature, real-name authentication should be carried out to ensure the true identity of the signature maker.

After the production is completed, when the document is signed, the CA certificate will be issued, and the operation will be solidified by time stamp curing technology to save the certificate.

After this process, the electronic signature takes effect.