One of the beauties of the printed word, is that it is far more difficult to change...electronic formats lend themselves to easy revision. Hard copy is.
Tell me about it. When I was writing the DMZ report in Korea for the President, SecDef, JCS and etc. (on a manual typewriter) if I made any kind of mistake it went into the burn bag and I had to start over. No wite-out on that kind of document.