This article and video will show Notaries to fill out each part of a notarial certificate, and common mistakes to avoid. A brief description of each type of notarial act and the related certificate follows.For additional information, please see the Illinois Notary Handbook. You can print an application to become a notary public at the Secretary of State's website or call (217) 782-7017. In the state of Illinois, a notary public cannot authenticate original documents or photocopies of them. An attorney must do this; it is called "Certification. What do I need first? 8. This form must be signed in the presence of a notary public. Notary publics are available at most banks and currency exchanges for a minimal fee. Notary Certification for Principal and Surety.