Resizing an image
To change the size of an image, click on the image and use the black triangle found at the bottom right of the image to increase or decrease the size.
Zoom in or Zoom out an image
To zoom in onto a part of your image, click on the image and use the bar found on the left hand side of the image to zoom in or out. Move your mouse cursor upwards to zoom in and downwards to zoom out.
When you have zoomed in on an image, you can then move around your image. To do so, click on the image, hold, and move your mouse to move around the visible part of your photo.