How To Convert RTF To HTML In ASP.NET

Step 1: Download SautinSoft.RtfToHtml.dll DLL from given link

http://downloads.zdnet.com/product/2066-10708032/

Step 2: Add reference to SautinSoft.RtfToHtml.dl to your project.

Step 3: Add namespaces

using SautinSoft;

using System.IO;

Step 4: Write below code on a button click event handler.

protected void Button1_Click(object sender, EventArgs e)
{
SautinSoft.RtfToHtml r = new SautinSoft.RtfToHtml();
r.OutputFormat = SautinSoft.RtfToHtml.eOutputFormat.HTML_401;
r.ImageStyle.IncludeImageInHtml = false; //To save images inside HTML as binary data specify this property to 'true'
r.ImageStyle.ImageFolder = Server.MapPath("");
r.ImageStyle.ImageSubFolder = "images";
r.ImageStyle.ImageFileName = "picture";
string rtf = File.ReadAllText(@"C:\Documents\633868836830039716_d50a2ee6-4dad-4911-aaa8-692b24ed8734.rtf");
string html = r.ConvertString(rtf);
//show HTML
if (html.Length > 0)
{
File.WriteAllText(@"C:\myfile.html", html);
}
}