In order for a document to be accepted internationally, it usually must first be legalised or formally proved valid and genuine. Most countries require documents to be witnessed or for original documents to be certified by a Notary Public before those document can be used overseas.
In Australia, Notaries are senior legal practitioners who are qualified to authenticate, prepare, attest, verify, witness and certify original and copy legal documents for use in Australia and internationally. A notarial act is generally recognised as an international “certification of authenticity”.
Under the Hague Convention, the office and seal of a Notary is internationally recognised.