117.05 Use of notary commission; unlawful use; notary fee; seal; duties; employer liability; name change; advertising; photocopies; penalties.
(3)(a) A notary public seal shall be affixed to all notarized paper documents and shall be of the rubber stamp type and shall include the words “Notary Public-State of Florida.” The seal shall also include the name of the notary public, the date of expiration of the commission of the notary public, and the commission number. The rubber stamp seal must be affixed to the notarized paper document in photographically reproducible black ink. Every notary public shall print, type, or stamp below his or her signature on a paper document his or her name exactly as commissioned. An impression-type seal may be used in addition to the rubber stamp seal, but the rubber stamp seal shall be the official seal for use on a paper document, and the impression-type seal may not be substituted therefor.

Governor's Reference Manual for Notaries Public - Keeping Records via a Notary Journal
Although not required by Florida law, you may consider keeping a notary journal. Even though journals are not required, any notary who is concerned with liability may want to consider this protective measure to provide a permanent record of his or her notarial acts.