How to merge MHTML files in C#

GroupDocs.Merger allows developers to merge MHTML files when it’s needed to organize multiple MHTML files into single document or send fewer attachments etc. And you can do this without¬†any third-party software or manual work involved. With GroupDocs.Merger it is possible to combine MHTML documents of any size and structure - all text, images, tables, graphs, forms and other content will be preserved.

The following example demonstrates how to merge MHTML files with several lines of C# code:

  • Create an instance of Merger class and pass source MHTML file path as a constructor parameter. You may specify absolute or relative file path as per your requirements.
  • Add another MHTML file to merge with Join method. Repeat this step for other MHTML documents you want to merge.
  • Call Merger class Save method and specify the filename for the merged MHTML file as parameter.
// Load the source MHTML file
using (Merger merger = new Merger(@"c:\sample1.mhtml"))
    // Add another MHTML file to merge
    // Merge MHTML files ans save result

About MHTML File Format

Files with MHTML extension represent a web page archive format that can be created by a number of different applications. The format is known as archive format because it saves the web HTML code and associated resources in a single file. These resources include anything linked to the webpage such as images, applets, animations, audio files and so on. MHTML files can be opened in a variety of applications such as Internet Explorer and Microsoft Word.

Code Examples

Please find more use-cases and complete C# sources of our backend and frontend examples and try them for free!

Merge MHTML Live Demo

GroupDocs.Merger for .NET provides an online MHTML Merger App, which allows you to try it for free and check its quality and accuracy.

“Merge MHTML”