The following methods will help you: 1. Buy a touchpad and you can sign on the computer freely

2. It is best to use a tablet touch screen on your smartphone Download an office software or other software that can make handwritten notes, import the document and you can handwrite and sign, then export and print. It is best to buy a stylus, which is more convenient for signing.

3. But I have to He said it would be best to print it out, sign it on the paper, and then make a copy