On a photo itself, you can draw, annotate, add measurements and attach even more photos.
If photo is part of the background, simply edit as you would any other object on the canvas.
If photo is a contextually located photo:
- Tap an existing Camera icon on canvas
- Tap desired photo (You can have more than one image in each location)
- Photo will fill screen and show available toolbar options
- To return to the drawing, tap the Project Name in top left corner