I'm using Adobe Acrobat 9 Standard to create forms. I want to include a tri state checkbox (Checked / Un-Unchecked / Crossed) in my form. There is an option to add checkboxes but they are only bi state ( Checked & Un Checked). Do you have any idea how to solve this?
I don't think it can be done, but why not ask in the Acrobat forum. This is the Reader forum. Acrobat users are more likely to come up with a method that might work than Reader users that do not use Acrobat.