-  Click  menu . .
- In the Open Markup DWF dialog box, select a file that contains markups. Click Open. Note:  If you open a digitally signed DWFx file, click Open File in the DWFx - Digital Signature Warning dialog box.  The Markup Set Manager opens and displays the markup set in the tree view.  
- In the Markup Set Manager, double-click a drawing sheet node to open the original DWG file. 
- In the Markup Set Manager, click the View DWF Geometry button to show the DWF geometry. 
Click the same button again to hide the DWF geometry.