1. Switch to the Signatures view, and select the surfaces or signatures that you want to proof.
  2. Start an imposition output process on the selected surfaces or signatures by dragging the surfaces or signatures to the imposition output process template.
  3.  Preserve spot colors by setting a specific option in the process template:
    1. In the Start Process dialog box, click Edit Process Template.
    2. Expand the Render section.
    3. In the Output Separation Handling list, select Output all separately.
    4. Close the process template.
  4. Click OK to close the Start Process dialog box.
    The proof process occurs. The proof is generated.