caudor
Adventurer
It just recently worked off the coast of Africa. 
Another solution might be self-destructing .pdf files (with smoke and everything).
Then there is the old petrification .pdf. Take a mug shot of a medusa and put it on page 1.
Finally, if none of the above, research needs to be funded for the .pdf mimic. Nothing slows down piracy like being eaten alive.
WotC just has to be a little more creative, then all this mess can be resolved. We are a creative bunch; what ideas do you have?

Another solution might be self-destructing .pdf files (with smoke and everything).
Then there is the old petrification .pdf. Take a mug shot of a medusa and put it on page 1.
Finally, if none of the above, research needs to be funded for the .pdf mimic. Nothing slows down piracy like being eaten alive.
WotC just has to be a little more creative, then all this mess can be resolved. We are a creative bunch; what ideas do you have?