I, personally, have not used this feature but I know many others out there that would love to know how to password protect their documents. It’s beneficial to have the document protected in the case of having confidential information. I created a video tutorial to do just that. There is a little bit¬†of fuzz in the beginning and the end (I don’t know how to get rid of it). Remember to watch it in HD and Full Screen mode for the best quality.