The other day there was discussion in a meeting on how to mark up an electronic document without having to print it out. Apple has a nifty little tool in the preview program to do limited mark-up of PDFs. The problem with this program is that it is limited and it is only on a Mac. It also seem to store the mark-up in the original document so the original is not original any more. Maybe there is some way to turn off the mark-up but I have not found it.
However, I have found a very nice program to do mark-up in several different types of files and you do not have to buy a Mac to do it, nor do you have to buy anything.
The program that I use is called Jarnal. It is a Java program and can be run on almost any OS. Basically, the program is started and then select a “background” text like a PDF or graphics file and start marking it up. The mark up is saved in a separate file so you always have the original that stays original and then Jarnal overlays the markup on the original. To share the markup you can send out the Jarnal markup file and the original document or you can print to a PDF from Jarnal (if you have PDFCreator or similar installed)
Unfortunately, it is not the easiest install so some guys at MIT were kind enough to package this tool for easier install. If this install is a little complex, comment on this post and I will give out some suggestions.