dotPhoto's lighting tool in the editing suite lets you change the brightness, contrast, highlights and shadows on one spot in a photo.
To adjust the lighting of a photo...
- Tap on the photo
- Tap on the pencil / edit icon in the upper left corner to enter the Editing tool.
- Choose the Lighting tool on the Edit bar.
- Choose the button on the top. For instance, choose Brightness to darken or brighten your photo.
- Drag the slider left or right to darken or brighten.
When satisfied, tap the Apply button in the upper right.
Tap the Save button to save your work, and save as a new image so you do not overwrite your original.