Water marks while printing - DMS

Hi gurus

My requirement is to have water marks on the original while printing in DMS (CV02N, CV03N)

We will have different types of water marks which will be selected manually while printing the originals (this is customized one, we are working on it)

I have tried using BADI DOCUMENT_ECL01 with method SHOW_DOC_META_DATA but could not be successful.

Also tried using OSS note 705266 with no use.

We are implementing ECC 6.0.

Can you please guide me???

Thank you in advance.

Regards

K. Balaji