Watermark on iXOS archived output

Hi,

I have a series of SapScript forms that are being archived to iXOS just fine. When they are retrieved by the user, I would like to incorporate an overlay with a "COPY" watermark or similar.

Any ideas how to provide this on the retrieved archive image, but not have it on the original document ?

Sap 4.7 system running  ..

SAP_BASIS     620     SAPKB62067

SAP_ABA     620     SAPKA62067

SAP_APPL     470     SAPKH47033

Many thanks.