title: Unchecking radio-boxes in a pdf with restricted security
body: <p>I just finished filling out a mammoth 100+ page background check in a .pdf file. I reviewed it and found I had mistakenly checked a few radio boxes, but I cannot uncheck them. How can I uncheck these boxes? The document is password-protected so I don't have the ability to edit the document or script. Is there any way to uncheck the boxes or should I go through the hassle of filling it out all over again?</p>
  
  <p>I'm using Adobe Acrobat 9 Pro.</p>