On our work shared drive, we have started adding a password to modify any documents. Otherwise, they are open as "Read-Only". Why, if you set a password to modify a PowerPoint presentation, don;t I get an option to Save As when you open up the PowerPoint document as read only. In both Word and Excel you can open read only and then click save as when you edit it. Why can't you do this in powerpoint? Is there a way to do it?