Default download dialog box not appearing on click of a document link in a document library?

Question

I am using the code given in this link to watermark my documents.

Here the author has used IHttpHandler to watermark document whenever a user clicks on a pdf document.

Whenever I click on a document link in the document library the document gets opened inside the browser with the watermark and stuff, instead of showing the default save or cancel dialog box. I don't want the document to get displayed inside the browser and then save it from there. I want to have the default save dialog box that usually appears when you click on document link. How can I do that?

Answer 1

Try adding:

context.Response.AddHeader("content-disposition", "attachment;filename=" + file.Name);