-  Click   . .
- In the Select Reference File dialog box, select the PDF file you want to attach. 
- Click Open. 
- In the Attach PDF Underlay dialog box, select one page, or use SHIFT or CTRL to select multiple pages. 
- Use one of the following methods to specify the insertion point, scale, or rotation of the underlay file: - Select Specify On-Screen to use the pointing device to attach the underlay at the location, scale, or angle you want. 
 - Clear Specify On-Screen and enter values for Insertion Point, Scale, and Rotation at the command prompt. 
 
- Click OK.