Back up Apple Photos with Mac
- Sign in with your Apple ID
- Open Photos app
- If logged into iCloud on your Mac, follow Steps 4 and 5 to save the original resolution photos from iCloud to your Mac.
Note: If you're not logged into iCloud, skip to Step 6.
- Open Photos Menu > Preferences
- Select the following settings
- Open Pictures and select "Photos Library"
- Drag "Photos Library.photoslibrary" into the Import window of the Desktop app