Below are PDF files (most people use these) that
1) can be printed out and info entered in by hand before signing, or
2) people can use a computer to fill info in before saving the file and then printing and signing (people can mix using computer and hand to enter info).

Farther below are Microsoft DOC files (less people use these) that
1) can be printed out and then info entered in by hand before signing, or
2) people can use a computer to enter info in before saving the file and then printing and signing (people can mix using computer and hand to enter info).

Note, some legal documents need witnesses and even a person who is a notary to be valid. And usually signatures, dates of signing, initials, and any notary area should be done by hand.