1. In the 1-Up Artwork pane of Job Manager, select and double-click the further refined PDF file in Acrobat.
2. From the Advanced menu, select Kodak Tools > Kodak PDF Trap Viewer.
3. Click the Highlight objects set to overprint button to identify overprint objects. Zoom in to the smaller objects if required.
4. Click the Highlight Traps icon to identify all the traps.
5. Check overprint/knock-out in Acrobat.
   In the 1-Up Artwork pane, double-click the file and preview it in Acrobat. 
   View the separations using the Acrobat output preview tool (View > Tools > Print Production > Output Preview). Turn the separations including Dieline off and on to identify the knockout and overprint objects. 
   Note that the Highlight Traps and Hide Traps icons are not active.
6. Quit Kodak PDF Trap Viewer and Acrobat.