Work with Slides Using Syncfusion .NET PowerPoint Library

The Syncfusion^® .NET PowerPoint Library allows you to create, modify, and remove slides in PowerPoint presentations using C# without Microsoft PowerPoint or interop dependencies. The nine predefined slide layout types let you create slides equivalent to those in Microsoft PowerPoint, or you can design custom slide layouts.

Watch this video to learn how to add, remove, resize, and customize slides in a PowerPoint presentation using the Syncfusion.NET PowerPoint library.

Watch the video

Work with slides using C#

Learn how to create modify and remove slides in PowerPoint presentations programmatically using C# with the Syncfusion .NET PowerPoint library. This guide demonstrates adding slides with predefined layouts and customizing slide content to build professional presentations effectively.

Step 1: Create a new project

Start by creating a new C# Console Application project.

Step 2: Install the NuGet package

Add the Syncfusion.Presentation.Net.Core package to your project from NuGet.org.

Step 3: Add required namespaces to work with slides

Add the following namespaces to your Program.cs file:

c#
using Syncfusion.Presentation;

Step 4: Add slides to a PowerPoint presentation

Create a new presentation and add a slide to it.

Run

c#
//Create a new instance of PowerPoint Presentation file
using IPresentation pptxDoc = Presentation.Create();
//Add a slide to the PowerPoint presentation
ISlide slide = pptxDoc.Slides.Add();

Step 5: Save the PowerPoint presentation

Save the created PowerPoint presentation to a file stream.

c#
//Save the PowerPoint Presentation as stream
FileStream outputStream = new(Path.GetFullPath(@"Output/Result.pptx"), FileMode.Create, FileAccess.ReadWrite);
pptxDoc.Save(outputStream);
outputStream.Close();