Convert the PDF doc to Word and then you can edit it. Here's the link. It's free.<br />
Try PDF995. It's free. Get it from download.com. You'll need PDFEdit995 to edit with. It will come as part of the package.
There are several free pdf editors on Sourceforge. I can't remember which ones I have used. Might be best to go with one that is highly rated.
look for an online PDF converter. They will turn a PDF into a word document... they tend not to deal well with forms though.
The latest Adobe Reader 11x does support editing of the pdf file contents and saving them as another pdf file or printing directly. The only condition is those pdf files should not be protected against editing. :) Its free and convenient.
download Cutepdf. www.cutepdf.com