An appropriate signature is the requirement of every mail that you sent out regardless of personal or official. Here are four simple steps of altering signature on your iDevice: I am using my iPod to take the screenshot and upload it on this blog, however steps will remain same on all the iDevices. 1. Click on Settings 2. Scroll to find Mail, Contacts, Calendars and tap on it 3. On the next screen you might need to scroll down till… 4. Scroll down till you find the option of Signature and tap on it 5. Here you are on the edit signature view. Edit according to your choice and click on Mail icon at the top left and you are done.