delete AirDrop files
I recently began using AirDrop, but discovered that iMac files that I did not wish to share were automatically shared with my iPhone. When I deleted these files from my iPhone, they also deleted on the iMac. I tried turning off AirDrop on both devices, but files still deleted on both devices.
1) how can I delete files transferred via AirDrop from receiving device only?
2) can AirDrop be used to receive only selected files? Or must it be used as an all-or-nothing transfer app?
Thanks for your help.
iPhone 6s, iOS 11.2.5