An Apostille in New Jersey is an official government certification that authenticates the origin of a public document so it can be legally recognized in foreign countries that are members of the Hague Apostille Convention. This process verifies the signature, seal, and authority of the person or office issuing the document, confirming its legitimacy for international use. Common documents that require an apostille include birth certificates, marriage certificates, academic records, business agreements, and power of attorney forms.