How do I turn off screen rotation on iPad 4

See >>> Rotate the screen on your iPad - Apple Support

To enable or disable Screen Rotation, you need to access the Control Centre. Swipe downwards from the top-right corner of the screen - then tap the Screen Rotation lock icon:

If screen rotation proves to be problem with some Apps - and not others - you need to be aware that not all Apps are coded to operate in both Portrait and Landscape screen modes. Apps that have a fixed screen orientation will always appear in the orientation determined by the App Developer.

marca193 Said:

"How do I turn off screen rotation on iPad 4"

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Turn the Portrait Orientation Lock button off:

1. Go Here: Rotate the Screen on your iPhone or iPod touch - Apple Support
2. Scroll to: Rotate the screen on an iPhone or iPod touch with a Home button
3. Proceed from there as necessary.