how to add video to ipad to edit?

I have been trying to edit a video on my new ipad since yesterday. But when I plugged my ipad into my laptop ...it started retrieving my back up files and erased my current app data that was on my ipad. So I reset my ipad to brand new and put all my apps back on there. Now I have the dilemma of how to add the video to my ipad without losing my data again? Please help!