Convert PowerPoint to Image with Syncfusion .NET PowerPoint Library

The Syncfusion^® .NET PowerPoint Library offers powerful and comprehensive APIs to convert a PowerPoint presentation into images programmatically with just a few lines of code and without Microsoft PowerPoint or interop dependencies. It allows you to convert an entire presentation into images or a single slide into an image, which can then be used to provide a document preview or thumbnail or be used for printing purposes.

Watch this video to learn how to convert PowerPoint presentations into image using the Syncfusion^® .NET PowerPoint library.

Watch the video

Convert PowerPoint to image using C#

Learn how to convert PowerPoint presentations to images programmatically using C# with the Syncfusion .NET PowerPoint library. This guide demonstrates converting entire presentations or individual slides into image formats.

Step 1: Create a new project

Start by creating a new C# Console Application project.

Step 2: Install the NuGet package

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

Step 3: Add required namespaces to convert PowerPoint to image

Add the following namespaces to your Program.cs file:

c#
using Syncfusion.Presentation;
using Syncfusion.PresentationRenderer;

Step 4: Open an existing PowerPoint presentation

Open a PowerPoint file from a file stream.

Run

c#
FileStream inputStream = new(Path.GetFullPath(@"Data/Template.pptx"), FileMode.Open, FileAccess.Read, FileShare.ReadWrite)
//Load the presentation
IPresentation pptxDoc = Presentation.Open(inputStream)

Step 5: Convert slide to image

Convert the first slide of the PowerPoint presentation to an image stream.

c#
//Initialize PresentationRenderer
pptxDoc.PresentationRenderer = new PresentationRenderer();
//Convert the PowerPoint slide as an image stream
Stream stream = pptxDoc.Slides[0].ConvertToImage(ExportImageFormat.Jpeg)

Step 6: Save the image

Save the converted image stream to a file.

c#
//Save the image stream to a file
FileStream fileStreamOutput = File.Create(Path.GetFullPath(@"Output/Image.jpg"));
stream.CopyTo(fileStreamOutput);
//Close streams and presentation
fileStreamOutput.Close();
stream.Close();
pptxDoc.Close();
inputStream.Close();