Up until recently, the only way to edit a PDF files was to shell out a couple hundred dollars for an editing program (Adobe's is currently running at
$449). But here is an application that is free to download and allows you to convert PDF files to a Microsoft Word Document. You can then edit it and, using CutePDF, convert it back to a PDF file. You can
download it over at HelloPDF.com. After you install it, all you have to do is select the PDF file you want to convert and then click "Convert to Word Document.