I am a newbie to drones and I have the DJI Pro 3 with the on screen remote.  
How do I transfer the pictures from the drone to say my phone?
How do I transfer the pictures to my home PC?

Hi, I have not yet tried to transfer pictures from my drone to PC but the transfer from drone to mobile phone was easy. I downloaded the 'DJI fly' app onto my mobile phone and after flying and taking some pictures/videos I simply opened the 'DJI fly' on my mobile phone (whilst my drone is powered on) and  my phone app  asked me if I wanted to transfer my pictures to my phone. Not sure if it makes any difference but I turn off my remote whilst doing this. Hope this helps.