How do I swap, crop, brighten or move a photo?

First click the page to select it, then click the photo. From there you can:

• Drag inside the photo to reposition it within its frame, and scroll (or use the slider) to zoom in.
• Adjust brightness and contrast with the sliders.
• Choose Swap to replace it with any other photo from the book's library, or upload a new one.

The first click on an unselected page only selects the page — that is deliberate, so you don't accidentally open a photo when you meant to select the page.