I've heard that there is a way to take a PDF and copy-and-paste the text into MS Word (or another word processor). I've tried this with some of the PDFs I currently have, and haven't had any luck.

This leads me to believe that either (a) what I heard was incorrect, and this is impossible, (b) the PDF needs to be created in a specific way for this to work, or (c) I need a specific version of Acrobat. Can anyone help?

What I have is some paper documents that I'd like to scan, but be able to "play with" the text in a word processor. How can I do this? What software do I need?

Thanks for your help!
pdf to text