Apostille of documents is necessitated when one is traveling to a country that is a part of the Hague Convention. It is provided by the MEA in the form of an apostille sticker (apostille stamp in some cases) and does not require any additional foreign government authentication for the documents. When you obtain an apostille sticker for even one of the Apostille Hague Convention countries, you can travel to any apostille country without requiring to obtain the sticker again, that is if the validity of the apostille allows.