An apostille (pronounced ah-po-STEEL) is a certificate attached to a public document to verify its authenticity for use abroad. Under the 1961 Hague Apostille Convention, it confirms that a document is genuine and issued by a legitimate authority.

Think of an apostille as a passport stamp for documents it proves the document is valid and internationally trusted. It usually appears as a stamp or separate certificate showing:

• Country of issue
• Name and position of the signer
• Issuing authority and date
• Registration number and official seal

All apostilles follow the same standard format worldwide, making them universally recognized.