An Apostille is a certification that verifies the authenticity of a document for use in foreign countries. It is typically attached to public documents, such as birth certificates, marriage licenses, and court orders, to confirm that they are genuine and have been issued by a competent authority. The process is governed by the Hague Convention, which simplifies the legalization of documents between member countries. To obtain an Apostille, individuals must submit their documents to the appropriate authority in their country, often a government office or a designated agency. Once the Apostille is issued, the document can be used in any of the countries that are part of the Hague Convention, eliminating the need for further authentication.