- Click Insert tab
Reference panel Adjust.
At the Command prompt, enter DGNADJUST. - Select the DGN underlay to adjust.
- On the Enter DGN Underlay Options menu, select one of the following:
- Select Fade and enter a fade value.
- Select Contrast and enter a contrast value.
- Select Monochrome and set monochrome to Yes or No.
The appearance of the PDF underlay is updated after you enter the new value and the command is completed.