Re: how copy pictures from s6 egde to ipad
You can use Google Photos app and upload everything from your Edge and your pics will be available to any device with the app.
Otherwise I would think you would need to copy your pictures from your Edge to your PC then use iTunes.
I haven't used an iOS device in a while, not sure if there is an easier way but you can't go wrong with the new Google Photos app, it's awesome.