For iPad 2, the Support section on Apple.com provides a user manual for the latest iOS version that iPad 2 supports, version 8.4 as of 2015, and a product information guide. It also features a separate iPad Support page that contains information regarding features, apps and various accessories.
To access the user manual for iPad 2, navigate to Apple.com, click on the Support button, click on the Manuals link in the Resources segment at the bottom of the page, and select the PDF or Web version of the manual or the product information guide. The user manual for the iOS 8.4 includes information for multiple iPad models, including Air, Mini, second, third and fourth generations. To access the iPad Support page, click on the iPad icon in the Support section and select the desired information category.