“The seal must be affixed by a seal press or stamp that embosses or prints a seal that legibly reproduces the required elements of the seal under photographic methods. An indelible ink pad must be used for affixing by a stamp the impression of a seal...” The seal may be a circular... or of a rectangular seal...and must have a serrated or milled edge boarder and the words “Notary Public, State of Texas” must appear around the five-pointed star. The Notary public's name, the notary public's identifying number, and the date the notary public's commission expires must appear on the seal. The notary public shall authenticate all official acts with the seal of office. ”
Source: GC 406.013