can recommend some?

I never understand how to use pdf editor, eventough i got adobe pro....
Its much more easier to convert to word then back to pdf

try LaTex, the pdf print out a lot more better than your normal word processing s/ware, e.g. MS Word, Open Office Writer, but be aware that LaTex requires some simple coding skills, which is quite similar to html tag.

try bullzip... google for it

Bullzip is a pdf printer. You create your file in another program - OpenOffice.org, Inkscape, or whatever; then print it to this printer and it creates a PDF file. I use PDF Creator myself. Also free.

Try OpenOffice 3.0 with Sun's PDF import Extension.

i've used nitro pdf before. it's a lot more user friendly than adobe acrobat.
(not freeware)