PDF doesn't show in ie over https

this should help
http://www.rdpslides.com/pptfaq/FAQ00553.htm

Thanks. That means i have to unset no-cache in the header....
but as it is a dynamic content, we are resistant to doing so....

FIX: Mixed security warning message appears when the POST method is used to stream a PDF file over HTTPS
When you use a POST method over HTTPS to access a server script that streams back a Portable Document Format (PDF) file, you may receive the following warning message: This page contains both secure and non-secure items. Do you want to display the...
http://support.microsoft.com/default.aspx?scid=kb;en-us;321532
"Internet Explorer Cannot Download" Error Message When You Use an HTTPS URL to Open an Office Document or PDF File
When you try to open a Microsoft Office document or a PDF file by typing an HTTPS Uniform Resource Locator (URL) for the document on the Address bar in Internet Explorer 6 Service Pack 1 (SP1), the document may not open, and you may receive the...
http://support.microsoft.com/default.aspx?scid=kb;en-us;812935
You receive an error message when you try to download a portable document format (.pdf) file from Live Meeting
Describes a problem that occurs where Internet Explorer cannot download from a .pdf file from Live Meeting.
http://support.microsoft.com/default.aspx?scid=kb;en-us;871103
Cannot Open Files on Secure Servers
When you attempt to open a file on a secure (HTTPS://) Web site, you may not be prompted whether you want to open the file from its current locations or save it to disk. Instead, a Save As dialog box may appear, prompting you to choose a location...
http://support.microsoft.com/default.aspx?scid=kb;en-us;254324

give the points to astaec

Again, thank you very much for your diligence in finalizing these questions.
":0) Asta

This question has been closed for a while but here is my solution to this problem, as alot of questions on this topic appear to be unanswered. (credit to others as this code snippet is a collection of other solutions).

// set the file path
			FileInfo file = new FileInfo(@"C:\file.pdf");
			// if connection is over https and in IE
			if ((Request.Browser.Browser.Equals("IE")) && (Request.ServerVariables["HTTPS"].ToLower().Equals("on")))
			{
				// Clear the content of the response
				Response.ClearContent();
				// set the cacheability for https connections
				Response.Expires = 0;
				Response.Cache.SetCacheability(System.Web.HttpCacheability.Public);
				Response.AppendHeader("Pragma", "public");				
				// Add the file name and attachment, which will force the open/cance/save dialog to show, to the header
				Response.AddHeader("Content-Disposition", "attachment; filename="+file.Name);
				// Add the file size into the response header
				Response.AddHeader("Content-Length", file.Length.ToString());
				// Set the ContentType
				Response.ContentType = "application/pdf";
				// Write the file into the response (TransmitFile is for ASP.NET 2.0. In ASP.NET 1.1 you have to use WriteFile instead)
				Response.TransmitFile(file.FullName);
				// End
				Response.End();
			}
			else
			{
				// Clear the content of the response
				Response.ClearContent();
				// LINE1: Add the file name and attachment, which will force the open/cance/save dialog to show, to the header
				Response.AddHeader("Content-Disposition", "attachment; filename="+file.Name);
				// Add the file size into the response header
				Response.AddHeader("Content-Length", file.Length.ToString());
				// Set the ContentType
				Response.ContentType = "application/pdf";
				// Write the file into the response (TransmitFile is for ASP.NET 2.0. In ASP.NET 1.1 you have to use WriteFile instead)
				Response.TransmitFile(file.FullName);
				// End the response
				Response.End();
			}

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