Digital signatures are a type of electronic signature that uses a series of personal identifications to verify the validity of the document and signer. Think of it as signing a document with something as an individual (and unique) to you as your own fingerprint.
Digital Signature is safer than the traditional one as it is very difficult to forge a dsc that has so many layers of security. A traditionally signed document can still be modified by adding papers or changing inputs in the document without a trace, but a digitally signed document is a hard nut to crack for fraudsters.
Digital signature Certificates have authenticity and high-level security criteria. They are legally binding in many countries. They follow the PKI (Public Key Infrastructure) security level.