If you’re trying to convert a PDF doc into an editable doc (for Word or some other program), you could try the ABBYY PDF Transformer. It’s available on line (http://pdftransformer.abbyy.com/) and while it’s not free, there’s an evaluation period that would solve your problems right now and give you a chance to see if you like it.
It works beautifully and gives you editable documents even when the original text quality is not very good. And of course, you can also use it to create PDFs.
.