handling pdfs?

[Chuck Robey]

I need to read about 4 tons of some really sparse pdf specs.  I also 
have a rather inconvenient throwback: I feel hugely more at home-reading 
  documents in paper.  What I'd kind of like to do would be able to 
perform cut'n'paste among different pdfs, 5 pages here, 10 pages there, 
until I put together maybe 100-200 pages, and sit back and read it. 
What I can't do is print just a few pages out of several 800-plus page 
specs, and perform paper cut'n'pasting.

Is there some sort of util that will allow me to do cut'n'pasting among 
different pdfs, or at the very least, only to print certain ranges out 
of pdf docs, so I could do paper-wise cut'n'paste?  An all-electronic 
solution would be best, but I'd take whatever offered.


Thanks