The Illinois Apostle is an official document issued by the Illinois Secretary of State’s office and is used to authenticate documents for international use. An Illinois Apostle is a form of authentication issued to documents for use outside the United States of America, and is commonly used for documents related to international business, legal, and educational matters. The Apostle verifies the authenticity of the document’s seal and signature of the public official who issued the document. The types of Illinois Apostle services include the authentication of Birth Certificates, Marriage Certificates, Divorce Decrees, Death Certificates, Power of Attorney documents, and School Transcripts. Documents that require an Apostle are typically used for international adoptions, visa applications, foreign real estate transactions, and other official purposes.