I'd like to transfer selected photos from my PC to an iPad Air 2 running iOS 9.2. This thread shows how to transfer from iPad to PC (Use Windows Explorer and treat iPad as a camera), and this thread suggests using Dropbox.
Can I use Windows Explorer and have the photos show up in the camera roll on my iPad? If not, what's the easiest way of doing so without syncing?
Note: I can see and copy JPGs from the iPad to my PC with Windows Explorer. I am not able to copy from my PC to the iPad.