Is there a software program that "locks" a Powerpoint presentation so that it can't be edited at all?
I know you can convert a .ppt to a .pps (slideshow) which sort of makes it harder to tamper with but I'm looking for something that is very difficult to change. I do realize that any serious hacker can figure out how to get into it, but I'm talking just something so your run of the mill, casual computer user can't change the Powerpoint at will.
thanks