An apostille is a specialized certifications that authenticates the validity of a documents for use in foreign countries that are party to the Hague Apostille Convention. Essentially, an apostille verifies the signature and seal of a notary public or other public official on a document, confirming its authenticity and ensuring it will be recognized by authorities in the destination country. Apostilles are typically affixed to documents such as birth certificates, marriage licenses, academic transcripts, and legal agreements, facilitating their acceptance in international transactions without the need for further authentication.