If you're working on a sensitive document, you may wanna keep it private, which means you're gonna restrict who can open the document. You may also want to stop people being able to mess around with it too much as well. So if you've spent lots of time setting up your styles correctly, perhaps you don't want people having carte blanche on how they change their styles themselves. All of these things can be protected with passwords. So, to access the passwords menu, we need to go through File. So, Alt F. We're gonna go to the Info section, I, and then the top option there, P for Protect Document, okay? So when you press Protect Document, you've got various options in here. So, you can encrypt with a password, and that's kinda straightforward. You type in your password, it'll ask you to type it in again, and then just make sure you remember it, otherwise, you won't be able to open the file again, okay? And remember, also, passwords are case sensitive. So, that's just to stop people from being able to open the document. Another thing you can do is, you can use, you can restrict editing, and this is actually quite useful. So for instance, if you want to restrict editing, let me just make this a bit bigger, so you can see it easier. Can I do that? Yeah, there we are. Okay. So if you want to restrict editing, there's a few useful things you can do here. You can limit the formatting to a selection of styles. Okay, so that basically means the styles that you've got in your styles gallery will be limited. So, you can do that. You can also edit restrictions. So, that basically means that people may or may not be allowed to make any changes to the document, they're only allowed to read it, for instance. Or, they have to be tracked, or they can only edit comments, and so on as well. So, there's various things that you can do. So, you have a little bit of flexibility on those here. Now obviously, you can make exceptions as well. And eventually, when you decide what you want to do, you have to start enforcing the protection. So again, that's where you're gonna require a password in here, okay? So, you'll enter your password, and then you'll reenter it to confirm. And that just means that for people to be able to override any of the settings that you've made, they will need that password as well. Okay? So that's how you add passwords to a document.