I know someone already asked this, and someone else was going to try to figure it out.... But I am still unclear as to if we can edit pdf's after they are made. Does anyone know?
Probably one of the least know programs to do this is http://www.dklevine.com/general/software/tc1000/jarnal.htm
This is a most excellent program, now to be accurate it doesn't let you 'edit' but it does let you annotate PDF's which means write on top of them and add comments and such. For simple stuff it works wonders!