Where is the form that I'm supposed to sign and send to the Department of Revenue for my state taxes?

When working on my state taxes it said that to file them I could choose to sign electronically or sign on paper. At first I chose to esign, but they asked for information that I didn't know so I switched to paper signing. Then I was told that I would have to sign a paper (some kind of form?) and then mail that paper to the Department of Revenue, but I never saw a place to download/print the form that I had to sign. What do I do?