If you tap Menu > Camera, the camera will be opened. If you take a photo, a waypoint will be created at your current location. The photo will be added to the waypoint and can be shown by opening the waypoint details screen.
The photo will also be saved in your photo library if you give Topo GPS access to selected photos of your photo library (iOS Settings > Topo GPS > Photos). The photo stored in Topo GPS is always a copy of the original. If you remove the photo in Topo GPS it will not be removed from your photo library. And also if you remove the photo from your photo library, it will not be removed from Topo GPS.
The photo saved in Topo GPS and in the photo library contains the location and the direction the photo was taken in, in the EXIF metadata, starting from version 7.8.0. To view the direction the photo was taken in, first open the waypoint details screen. Then tap on the photo to see it in more detail. You can view the direction on a map by tapping on the info button in the bottom bar.
If you are recording a route you can include the waypoints with the photos in the route. If you save the recorded route make sure that the setting ‘Include waypoints’ is set to ‘Created during recording’. Then all waypoints with photos that are loaded on the map and are created during the recording of the route will be included in the saved recorded route. Other possible irrelevant waypoints and photos will then not be added.