Attempting to transfer photos to ipad via itunes. Although the ipad is connected with usb it does not show up in Devices in itunes. I know it is connected because it wants to download photos from the ipad to the desktop. I have done it before but can't remember how. I do remember that I had to do something to prevent it deleting all the photos already on the ipad. To me it is unbelievable that it is so complicated to get photos onto an ipad.