Can you remote access an iPad?

No. You cannot control an ipad remotely. You can view the screen with a local computer. You can share the computer screen with the world.

Read the mentioned article carefully. It say you can control a computer from a ipad. Nothing about the other way around.

GoToAssist

Supporting iPhones and iPads

• Technicians can chat with end users to discover issues.
• End users can capture iPhone (iOS 6+) screenshots and share with technician via chat.
• GoToAssist integrates with the iPhone configuration utility to configure device settings.
• Technicians can specify each shared configuration profile’s “time to live” and share profiles directly via chat.
• End users can also request help using Customer-Initiated Support directly from their iPhones or iPad. End users instantly connect with available technicians using web-based chat, and they can upload screenshots and files to share with the technicians.

http://www.gotoassist.com/remote-support/remote-support/mobile

Reflector

"Wirelessly mirror your iPad, iPhone or iPod Touch screen to any Mac or PC." This works on your local network only.

http://www.airsquirrels.com/reflector/

There is no mechanism to implement remote “touch” input and since iOS is explicitly a touch interface OS there is no means to remote control it. That and the fact that iOS‘s sandbox security model precludes any app from controlling or affecting another. So no, remote control of an iOS device is not possible.

This may be helpful with what you want to do.