Possible Duplicate:
Can you tell me a good pdf editor, which allow me full editing
How can I edit PDF files for free. I do not have good internet speed. I do not need any online editing software. I need a 100% free software / Utility.
Possible Duplicate:
Can you tell me a good pdf editor, which allow me full editing
How can I edit PDF files for free. I do not have good internet speed. I do not need any online editing software. I need a 100% free software / Utility.
I just googled "Free PDF Editor" and this was the first result: http://www.freepdfeditor.net/ may be what you need!
Already mentioned, Inkscape is a good suggestion for many tasks.
The AbiWord word processor (at least with all the import plugins installed) will import PDFs as Word Processing documents. There's a plugin for OpenOffice which does the same. These are free.
You didn't say what operating system you were using, but there's the linux program pdfedit which might help. (You could always run linux virtually or through a live CD if need be, though with old hardware you should consider switching over to linux completely.)
Depending on what kinds of edits you need, jPDFTweak might work.