- Pinch-out with your fingers to zoom into the image.
- Move the image around with your image while it is zoomed to change the image section.
- Pinch-in to reset the zoom out of the image.
OR (applies on non-touch devices)
- Click or mark an area to zoom in.
- Use the small navigation window to select the visible image section.
- Use the reset, minus and plus buttons at the bottom to change the magnification.
- Use the buttons on the right of the plus button to change the mouse mode (zoom, pan, rotate).