According to the nature of the signature, it can be divided into legal person signature and natural person signature:
Signature of legal person: generally, official documents are only stamped with the corporate seal (official seal) at the end of the official document; Some official documents involving the responsibility of the legal representative must have the name and official seal of the unit, as well as the signature and private seal of the legal representative.
The signature of a natural person shall be personally signed in the name column of the document, and the private seal of the party concerned shall be affixed.
With the progress of the times, electronic signatures have gradually begun.
Because modern seals are engraved by computer, the probability of being forged increases correspondingly, and the single seal of a seal is also a mere formality, so it is often combined with handwritten signature. With the improvement of modern fingerprint analysis ability, some important contracts should be stamped with handprints in addition to signatures and seals. The signature and seal at this time include signature, seal and handprint.