[Edit: the underlying problem has been fixed in iOS 9.2]
I export my favourite photos from Lightroom for viewing on an iPad. My camera takes photos with a 3:2 aspect ratio; the iPad screen has a 4:3 aspect ratio.
In the iOS 8 Photos app, this wasn't a problem, it just meant that the photo didn't completely fill the screen. In iOS 9, however, the app zooms in to fill the screen -- effectively cropping the ends off of every photo. This looks horrible, but I can't find any way to stop it.
So I'd like to change the aspect ratio of my photos when I export them for the iPad, by manually adding the letterboxing that the app used to add automatically. Is there a way to do this?
Alternatively, can anyone think of a less hacky solution for the problem? I'm using Lightroom 5.7.