A legal signature is a person's name or mark that signifies their agreement to the terms of a document. It serves as a form of identification and consent, making the document legally binding. Legal signatures can be handwritten or electronic, depending on the jurisdiction and the type of document involved. In many cases, a legal signature is required for contracts, agreements, and other official papers. The Uniform Electronic Transactions Act (UETA) and the Electronic Signatures in Global and National Commerce Act (ESIGN) provide guidelines for the use of electronic signatures, ensuring they hold the same legal weight as traditional handwritten signatures.