Leslie Holmes wrote:
Thanks for the second paragraph, that's helpful!
Re my first problem, I am talking about photos being transferred from my phone to the computer, sorry if that wasn't clear. So the originals are on the phone, not the computer. iTunes used to offer the option of deleting originals from the phone after they had been transferred to the computer -- but no more? If that is still possible I'd like to know how.
iTunes never offered that option, as iTunes is not involved in transferring photos from the iPhone to a computer. When you connect the phone to the computer it is recognized as a digital camera, so whatever app on the computer that you have set to be launched when you connect a digital camera is the one that will be used. The option to delete after copy is in that app (or it isn't). On a Mac iPhoto offered that option, as does Picasa, Nikon ViewNX and Photoshop Elements. On Windows I'm pretty sure Microsoft Photos does, as well as Photoshop Elements. If your program doesn't have that option you can still do it the way Demo described, on the phone. But if you do it on the phone note that iOS now has the equivalent of a trash folder; it's an album called "Recently Deleted." So to get rid of the photos you need to delete them twice, once from the camera roll and again from the recently deleted album.
All of this assumes you have not turned on iCloud Photos (Settings/iCloud). If you have it turned on photos will sync to iCloud as soon as they are taken, and can be viewed in the Photos app on a Mac or in a web browser. If you delete photos from the phone they will also be deleted from other devices that have iCloud Photos enabled.