Apostilles certificates authenticate the document’s signature, stamp or seal and must include;
name of document’s signatory and their capacity
place date of issue and issuing authority
details of the document’s seals/stamps and the stamp/seal of the issuing authority
certificate number and the member of the issuing authority who signed the document
Legalisation gives official confirmation that the signature, stamp or seal on any document is genuine.  An official checks the document’s signature, seal or stamp against what is shown on their records. If they match, the legalisation certificate, or Apostille is given to confirm authenticity.