Electronic signature refers to the signature or seal of an electronic document.

UTC eSeal system can stamp and sign electronic documents (Word, Excel, AutoCAD, Acrobat, wps, IE, Lotus Notes… DIY) and bind electronic documents. Once the file is changed (illegal tampering or transmission error), the displayed signature will be invalid. Youtai electronic signature system can identify the identity of the signer of electronic documents and ensure the authenticity, integrity and non-repudiation of documents.