2. Select Raster Image Reference from the Insert menu.

3. Select the picture to be inserted in the pop-up picture selection box (0 1 picture on the desktop when inserting here), select it and click "Open".

4. Set the parameters in the pop-up command box, mainly including the insertion point and zoom ratio (this can be unchecked as needed, and you can directly check "Specify on the screen").

5. Use the cross cursor of cad to insert the picture in the position you need and adjust the required size.

It's done.