The Uniform Commercial Code [1] in the United States says that:
> A signature may be made (i) manually or by means of a device or machine, and (ii) by the use of any name, including a trade or assumed name, or by a word, mark, or symbol executed or adopted by a person with present intention to authenticate a writing.
IANAL but I would think that this program would fall under "by means of a device" and thus be considered valid.
> A signature may be made (i) manually or by means of a device or machine, and (ii) by the use of any name, including a trade or assumed name, or by a word, mark, or symbol executed or adopted by a person with present intention to authenticate a writing.
IANAL but I would think that this program would fall under "by means of a device" and thus be considered valid.
[1] https://www.law.cornell.edu/ucc/3/3-401