Make PDF display inline instead of separate Acrobat Reader window

Question

I\'ve got an ASP.NET ashx class that retrieves data from a database, creates a PDF file using iTextSharp, and streams the PDF to the browser. The browser (IE and Firefox at

Answer 1

OK, turns out it was a stupid question, but I'm glad I asked it because I had never heard of Fiddler (which led me to the answer, which is why I'm accepting tspauld's answer). The PDF is generated by a web service that serves the file to a couple of different front-end sites. I was setting the content disposition to inline in the service, but that didn't matter, because the browser never got that header; it got the header from the front-end site (which was attachment). I changed it in the front-end site and that fixed it.

So the answer is that you have to have Content-Type=application/pdf and Content-Disposition=inline; filename=Something.pdf, as others have said.