Can't download the cheat sheets

This type of problem you might get in iPhone and iPad.

You’ll need an Adobe app to download the Cheat Sheets. And here’s a handy link to do just that:

https://itunes.apple.com/ca/app/adobe-reader/id469337564?mt=8

If you require further instructions here’s a video:

https://forums.adobe.com/docs/DOC-1883

And there’s clear instructions here: https://forums.adobe.com/docs/DOC-2532