We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy. Image for the cookie policy date
Unfortunately, activation email could not send to your email. Please try again.
Syncfusion Feedback

How to merge or combine multiple PowerPoint files in C#, VB.NET

Platform: WinForms |
Control: Presentation

Syncfusion Essential Presentation is a .NET PowerPoint library used to create, open, read, edit, combine and convert PowerPoint presentations. The library supports combine/merge PowerPoint slides with below paste options equivalent to Microsoft PowerPoint. 


  • Keep Source Formatting – This implies that the slide will keep its original theme format by maintaining the theme of presentation you are copying from.
  • Use Destination Theme - This will adapt the copied slide to match the destination theme by taking the theme of the destination presentation.

Steps to combine PowerPoint programmatically:

  1. Create a new C# console application.


  1. Install Syncfusion.Presentation.Base NuGet package to the console application project from nuget.org. For more information about adding a NuGet feed in Visual Studio and installing NuGet packages, refer to documentation



  1. Include the following namespace in the Program.cs file.



The following example demonstrates how to copy a PowerPoint slide from a PowerPoint presentation and paste it to another PowerPoint presentation.




You can download the working sample from Combine-PowerPoint.Zip.

Take a moment to peruse the documentation, where you can find options to combine the PowerPoint slides with code examples.

An online sample link to Combine PowerPoint slides

Refer here to explore the rich set of Syncfusion Essential Presentation features.


Starting with v16.2.0.x, if you reference Syncfusion assemblies from trial setup or from the NuGet feed, include a license key in your projects. Refer to link to learn about generating and registering Syncfusion license key in your application to use the components without trail message.


2X faster development

The ultimate WinForms UI toolkit to boost your development speed.
You must log in to leave a comment

Please sign in to access our KB

This page will automatically be redirected to the sign-in page in 10 seconds.

Up arrow icon

Warning Icon You are using an outdated version of Internet Explorer that may not display all features of this and other websites. Upgrade to Internet Explorer 8 or newer for a better experience.Close Icon

Live Chat Icon For mobile