Cropping may be the most common raster editing operation, as the scanned images usually contain oversized margins, usually filled with dirt, that need to be cut off. Equally often you might need to remove old drawing borders and other parts that happened to be located closer to drawing’s margins.

Open the office.tif rasterimage and then choose Document - Add Subdocument option to add the office.dwg vector drawing.

Suppose that the only part of the scanned drawing that you need for your project is the floor shown between dimensioning lines. Texts on the right side may be removed and the scanned image extents may be actually smaller.

Click the Crop rectangle button on the Raster toolbar. Define a rectangle encompassing this part of the scanned drawing that you want to have and accept the command by the OTM Accept option. The picture below shows situation just before the acceptance.

All unwanted parts are cut off and the scanned image will get smaller, as shown below.

Click the Undo button on the Main toolbar to reverse the changes, or exit SuperEdit without saving anything.