Apostille certificates authenticate the 'seals and signatures' of officials on a document. Critical documents have to be apostilled or authenticated so they can be recognized in a foreign country.
Usually document authentication (apostille) agents are trained, certified, background checked and E&O insured to protect you, the clients.
As a first step to get your documents apostilled, authenticated and legalized have your original documents notarized or certified. Then schedule an appointment with a certified apostille agent for their service by submitting your order form in which you specify your name, address, contact info, the state (country) of the origin of the document, the destination country of the document, the type of documents that you are sending, plus a payment for the service that you seek from the apostille agent.