Open Source Adobe Acrobat Pro?

[asterroc]

I'm looking for a free and/or open source program that will let me edit .pdf files and save them partially filled in and continue them later. Any suggestions?

Edit: I use a Mac.

Comments

[best-ken-ever.livejournal.com]

This proves to be exciting (:

I look forward to spacefaring!

(Sorry, I don't have anything to contribute to the actual entry)

[zandperl.livejournal.com]

Too bad Kappa can't lay an egg on command, or she'd be a good duck substitute. I have to remember to schedule boarding for her for that weekend.