@harrio : I think I understand. I have a client request that needs to have PDF support integrated inside C2. I look at PDF.js a few months ago when it went public.
I spent some time looking the github of the project, and their wiki. It seems that they have working discussions on the idea of adding print & search, and they don't know how to prioritize it. There's already some code inside the project to have limited search capabilities, so when I'm going to integrate the public (in the next two weeks), I'll come back to you to say if it's possible or not.