Does it have to be in PDF format? I would like to have an app that I could sign a typical email. I had lawyer email me a letter to sign and send back. I couldn't do it my app only let me do it if it was a PDF file. The app was signNow.Roofcheck said:Sign Easy. Email your PDF Contract to the App. Open it up and start adding fill in the blanks and sign and have your customer signn and wala. Email the time stamped doc to you and them. Pretty slick.