How add Water Mark once upload document into the document Library? i checked TITUS is is working but how to achieve without 3rd party tools.
You have to use 3rd party tools. For example, I used the iTextSharp library to add watermarks to my PDF files, and set up a workflow to automatically fire whenever a document is uploaded into the doc library.
Here's a tutorial for the iTextSharp thing.
Try this link. It applies to PDFs already uploaded. The watermark gets added on download. http://blog.falchionconsulting.com/index.php/2012/03/stamping-pdf-files-downloaded-from-sharepoint-2010/
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