I use Acrobat X Pro. When I click the "Sign" Button I do not get the I Need to Sign, Fill & Sign, Place Signature Menu Options like I do using another computer in Acrobat Reader XI. Why? Or, alternatively how do I activate those convenient options in Pro? When I click on the "Sign" Button in Pro, I get "Sign With Certificate" Options...but nothing that would allow me to simply place graphic signature file like in Reader.