The Image Tool 
The Image Tool allows a graphic to be placed on an image, photo, etc...Select the Image tool and drag 'n' drop
it onto the image viewer. A box will appear. You can change
the shape and size of the box where the graphic will appear, as well
as rotate it by grabbing the small box in the middle and turning.

Right-click on the box to bring up the Image File
box as shown below. Click on Load and select the graphic you want
to load from the proper file location. Click Apply and then
Close. The graphic you selected will appear inside the image
rectangle on top of the image currently in the viewer. You can
grab this new graphic and move it around within the image viewer.

Selecting the Rectangle
tab allows you to enter specific values for defining the image
rectangle used, including center X, Y, width, height, angle and aspect
of width/height. After entering your values, click Apply and then
Close.

Selecting the Entity
tab allows you to adjust the colors, thickness, handle size and
visibility of the image rectangle. You can also select a
Coordinate System. Make the necessary adjustments, click Apply
and then Close. The values will be updated according to your
selections.