I'm someone that earns their keep in the IT world. Let me say that as soon as there is a picture on the screen or if they can see it, it can be stolen and printed, I do not care what anyone says. Same for "locked and protected PDF files", I can print, copy or do anything I want without much if any effort at all.
When it comes to a product, and you want a copyright on it... make it SMALL (like under 350 pixels on the long side) and place a watermark on it.
Watermarks can still be removed, and small pics can still be printed, just that quality will suffer. For some people, though, that makes no difference and you are still out the money owed to you.
Microsoft does make a technology that prevents people from copying or printing or accessing files on a location after looking at it "X" number of times or for "X" number of days (DRM was mentioned)... but I only need to see something ONCE on my screen (or if it is a sound file, listen to it ONCE), to copy it forever and do anything I want with it. Been there, and done that for a client who just did not get it.
Oh, about DRM... MS left a nasty back door to it. To access the files, you need access to the internet where this server validates your "rights" to see or print or hear this file. By renaming one small local file and cutting internet access temporarily, all security goes down the tubes and you have FULL access to restricted material. See what I mean about true DRM security being a bit of a joke?
Hopefully one day it will improve, but its not here yet, not even close.
As I tell most of my clients... true complete security is a facade... it doesn't exist, never did... never will.