There are several imaging process controls available when viewing a raster image in the Cortex presenters.  Zoom, Pan, Contrast/Brightness and magnifier are some of the available options.

Example of Image Tools in Teaching File presenter - hover over the tool to view the tool tip. Teaching File also has the control to view the annotated image using the "A arrow" button. Double click the image to toggle between the presenter and full screen viewing.

Example of Image Tools in EDGE.

Example of Image Tools in Case Script and Simple Image.