I have my stuff in source format and either save as PDF from my office app or use PDF995 to create such from other apps.
Hint? I don't edit a PDF. I edit my source.
i dont like acrobat, since it doesnt ever want to fully close,(keeps process running in backgroud many times). i have been using foxit, which is good, but is there another free pdf reader that also will allow me to make minor changes, or overlay text? foxit does it, but leaves a nice big stamp on the top unless i buy it.