A Notary Public is a public official appointed by the state to witness and authenticate signatures on official documents, take acknowledgements of deeds, affidavits, or other instruments, and verify copies of documents. The cost for using a notary public is typically based on their services (which can range from witnessing a signature on a document to attesting an oath or even administering a solemn affirmation) as well as reimbursement for any travel expenses associated with meeting their customer in-person. Cost for opting for a notary’s service is usually included in the document processing fee, so it’s important to inquire about this before paying for their services.