- Optimise GUI for left or right-handed users.

- Zoom via multi-touch gesture and single-touch control.

- Option to lock orientation to portrait or landscape for photo or video. Upside-down

preview

- Overlay a choice of grids and crop guides.

- GPS location tagging (geotagging) of photos for photos this includes compass direction

(GPSImgDirection, GPSImgDirectionRef).

- Apply date and timestamp, location coordinates, and custom text to photos;