Add CopyRight WaterMark text to uploaded images in ASP.Net

Refer

http://www.codeproject.com/Tips/387998/Watermark-image-on-page-print-in-ASP-NET

http://www.codeproject.com/Tips/323990/How-to-Create-watermarked-images-in-csharp-asp-net

http://makhaai.blogspot.in/2008/06/dynamically-add-watermark-on-image.html