With the image already inserted into your drawing file:
1. Click once on the image to select it. Just below the command bar, the image toolbar will appear. 2. In this toolbar, click on the right-most Crop button to open the Crop pop-up window. 3. Insert the exact measurements of the canvas you want to crop. 4. Click the OK button to close the window. 5. Click outside the image to deselect it.