updated 2/6/2013: actually use http://www.pdfescape.com/
I’m sure now a day many people use Adobe Acrobat Reader, either to read something or have heard of it or seen it. Well for the many folks whom want to write on it or type on it I should say, it is possible even if it’s blocked locked can’t type.
Here’s how, just scan the document you want to turn into a form even it’s blurry and cannot convert to text easily, don’t worry. After you scan it, save it as PDF file if you can, if not just save it as JPEG or any image file format will do. Then go to this site: http://www.pdffiller.com it’s not free! they want to charge you at the end.
Then upload your file, then you can use the tools click drag to the area where you want to type your text, and voila, there you go 🙂