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Once you've created your presentation and you would like to share it with others, internally if you will you can have the opportunity to create some security for that document. Let's say you have proprietary information that you want to restrict access to only a handful of people. Well you can do that through a password and there are two types of passwords we can use. The password to open the file and also a separate password to modify the file. Let's take a look at how we do that. First of all we need to go to our office button and go to save as, I'm going to give this a different file name so I know it's my secure file and go down to the tools dropdown menu and select general options and here we have, let me get this moved up here so we can see, we have two passwords. We can create a password to open the file and we can also create a password that will allow people to modify it. So for the sake of simpleness I'm going to create a password here that just says open, hopefully you will do something more secure then that. Usually a combination of letters and numbers and you can also select this to remove any of the meta data that's secure like my name so forth and so on that's saved with the files. I'll go ahead and do that and click OK, now this is going to confirm that I know what the passwords are, it's a good idea to always write these down somewhere. Oops see I messed up. OK we're going to go back, I mistyped the password there, open and modify, there we go. OK I'm going to go ahead and save that now and I'm going to close this presentation and let's see what happens when you try and open it, there it is, open, oop I can't do it, it's asking me for the password which is open. Ok, now I have a couple of options, I can cancel opening or if I don't have the password to modify the document I can go to read only and I will be able to read the presentation, I won't be able to do much else with it. So that's how you can set a couple of security options for your PowerPoint presentation.