MHT File Viewer via C#

View MHT documents in a browser without needing Adobe Acrobat or Automation with C#

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How to view MHT files Using .NET Library

In order to view MHT file, we’ll use Aspose.PDF for .NET API which is a feature-rich, powerful and easy to use document manipulation API for net platform. Open NuGet package manager, search for Aspose.PDF and install. You may also use the following command from the Package Manager Console.

Package Manager Console

PM > Install-Package Aspose.PDF

View MHT files via C#

You need Aspose.PDF for .NET to try the code in your environment.

  1. Load the MHT with an instance of Document.
  2. View resultant File.

System Requirements

Just make sure that you have the following prerequisites.

  • Microsoft Windows or a compatible OS with .NET Framework, .NET Core, and PHP, VBScript, Delphi, C++ via COM Interop.
  • Development environment like Microsoft Visual Studio.
  • Aspose.PDF for .NET DLL referenced in your project.

C# - example code to view MHT file.

This sample code shows how to view MHT files

    MhtLoadOptions options= new MhtLoadOptions();
    Resolution resolution = new Resolution(300);
    BmpDevice imageDevice = new BmpDevice(resolution);
    Document pdfDocument= new Document(_dataDir + "test.mhtm", options);
    for (int pageCount = 1; pageCount <= pdfDocument.Pages.Count; pageCount++)
    {
        using (FileStream imageStream =
        new FileStream($"{_dataDir}image{pageCount}_out.{ext}", FileMode.Create))
        {
            // Convert a particular page and save the image to stream
            imageDevice.Process(pdfDocument.Pages[pageCount], imageStream);

            // Close stream
            imageStream.Close();
        }
    }

About Aspose.PDF for C# API

A PDF Processing Library to create cross-platform applications with the ability to generate, modify, convert, render, secure and print documents without using Adobe Acrobat. It supports converting various file formats into PDF including HTML and converting PDF documents into various output formats. Developers can easily render all HTML content in a single Page PDF as well as convert HTML files with SVG graphic tags to Tagged PDF files. .NET PDF API offers compression, table creation, graph & image functions, hyperlinks, stamp and watermarking tasks, extended security controls & custom font handling.