Convert DOCX and RTF to HTML in .NET Core in C# and .NET


Complete code

using System;
using System.IO;
using System.Text;

namespace Sample
{
    internal class Test
    {

        private static void Main(string[] args)
        {
            SautinSoft.RtfToHtml r = new SautinSoft.RtfToHtml();

            string inpFile1 = @"..\..\..\example.rtf";
            string inpFile2 = @"..\..\..\example.docx";
            string outFile1 = @"Result RTF.html";
            string outFile2 = @"Result DOCX.html";

            r.ImageStyle.IncludeImageInHtml = true;

            try
            {
                r.OpenRtf(inpFile1);
                r.TextStyle.Title = "Produced from RTF.";
                r.ToHtml(outFile1);

                r.OpenDocx(inpFile2);
                r.TextStyle.Title = "Produced from DOCX.";
                r.ToHtml(outFile2);

                // Open the results for demonstration purposes.
                System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(outFile1)
                { UseShellExecute = true });

                System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(outFile2)
                { UseShellExecute = true });

            }
            catch (Exception e)
            {
                Console.WriteLine($"Error: {e.Message}");
                Console.WriteLine("Press any key ...");
                Console.ReadKey();
            }
        }
    }
}

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Imports System
Imports System.IO
Imports System.Text

Namespace Sample
	Friend Class Test

		Public Shared Sub Main(ByVal args() As String)
			Dim r As New SautinSoft.RtfToHtml()

			Dim inpFile1 As String = "..\..\..\example.rtf"
			Dim inpFile2 As String = "..\..\..\example.docx"
			Dim outFile1 As String = "Result RTF.html"
			Dim outFile2 As String = "Result DOCX.html"

			r.ImageStyle.IncludeImageInHtml = True

			Try
				r.OpenRtf(inpFile1)
				r.TextStyle.Title = "Produced from RTF."
				r.ToHtml(outFile1)

				r.OpenDocx(inpFile2)
				r.TextStyle.Title = "Produced from DOCX."
				r.ToHtml(outFile2)

				' Open the results for demonstration purposes.
				System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(outFile1) With {.UseShellExecute = True})

				System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(outFile2) With {.UseShellExecute = True})

			Catch e As Exception
				Console.WriteLine($"Error: {e.Message}")
				Console.WriteLine("Press any key ...")
				Console.ReadKey()
			End Try
		End Sub
	End Class
End Namespace

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If you are looking also for a .NET solution to Create or Modify HTML documents, see our Document .Net.


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We are developing .Net components since 2002. We know PDF, DOCX, RTF, HTML, XLSX and Images formats. If you need any assistance with creating, modifying or converting documents in various formats, we can help you. We will write any code example for you absolutely free.