com.apple.security.files.user-selected.read-only
A Boolean value that indicates whether the app may have read-only access to files the user has selected using an Open or Save dialog.
Discussion
To add this entitlement to your app, enable the App Sandbox capability in Xcode and set User Selected File to Read Only.
See Also
Files and media
App Sandbox Entitlementcom.apple.security.files.user-selected.read-writecom.apple.security.files.downloads.read-onlycom.apple.security.files.downloads.read-writePrivileged File Operationscom.apple.security.assets.pictures.read-onlycom.apple.security.assets.pictures.read-writecom.apple.security.assets.music.read-onlycom.apple.security.assets.music.read-writecom.apple.security.assets.movies.read-onlycom.apple.security.assets.movies.read-writeAll files entitlementData Protection Entitlement