Convert PowerPoint to Image in .NET MAUI

4 Feb 202511 minutes to read

Syncfusion^® PowerPoint is a .NET MAUI PowerPoint library used to create, read, edit and convert PowerPoint presentation programmatically without Microsoft PowerPoint or interop dependencies. Using this library, you can convert a PowerPoint to image in .NET MAUI.

Steps to convert PowerPoint to Image programmatically

Prerequisites:

Visual Studio 2022.
Install .NET 8 SDK or later.
For more details about installation, refer here.

Step 1: Create a new C# .NET MAUI app. Select .NET MAUI App (Preview) from the template and click the Next button.

Create the MAUI app in Visual Studio

Step 2: Enter the project name and click Create.

Create a project name for your new project

Step 3: Install the Syncfusion.PresentationRenderer.NET NuGet package as a reference to your project from NuGet.org.

Install Syncfusion.PresentationRenderer.NET NuGet package

NOTE

Starting with v16.2.0.x, if you reference Syncfusion^® assemblies from trial setup or from the NuGet feed, you also have to add “Syncfusion.Licensing” assembly reference and include a license key in your projects. Please refer to this link to know about registering Syncfusion^® license key in your application to use our components.

Step 4: Add a new button to the MainPage.xaml as shown below.

C#
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="Convert_PowerPoint_Presentation_to_Image.MainPage">

    <ScrollView>
        <Grid RowSpacing="25" RowDefinitions="Auto,Auto,Auto,Auto,*"
            Padding="{OnPlatform iOS='30,60,30,30', Default='30'}">
            <Button 
                Text="Convert PPTX to Image"
                FontAttributes="Bold"
                Grid.Row="0"
                SemanticProperties.Hint="Convert PPTX to Image"
                Clicked="ConvertPPTXtoImage"
                HorizontalOptions="Center" />
        </Grid>
    </ScrollView>
</ContentPage>

Step 5: Include the following namespaces in the MainPage.xaml.cs file.

C#
using Syncfusion.Presentation;
using Syncfusion.PresentationRenderer;

Step 6: Add a new action method ConvertPPTXtoImage in MainPage.xaml.cs and include the below code snippet to convert a PowerPoint to Image in .NET MAUI.

C#
//Loading an existing PowerPoint presentation.
Assembly assembly = typeof(App).GetTypeInfo().Assembly;
//Open the existing PowerPoint presentation with loaded stream.
using (IPresentation pptxDoc = Presentation.Open(assembly.GetManifestResourceStream("Convert_PowerPoint_Presentation_to_Image.Assets.Input.pptx")))
{
    //Initialize the PresentationRenderer.
    pptxDoc.PresentationRenderer = new PresentationRenderer();
    //Converts the first slide into image.
    Stream stream= pptxDoc.Slides[0].ConvertToImage(ExportImageFormat.Jpeg);
    //Reset the stream position.
    stream.Position = 0;
    //save and Launch the image file.
    SaveService saveService = new();
    saveService.SaveAndView("PPTXtoImage.Jpeg", "application/jpeg", stream as MemoryStream);
}

Step 7: Run the Application.

Select the target framework, device or emulator.
Press F5 to run the application.

You can download a complete working sample from GitHub.

By executing the program, you will get the image as follows.

PowerPoint to Image on macOS

Helper files for .NET MAUI

Refer the below helper files and add them into the mentioned project. These helper files allow you to save the stream as a physical file and open the file for viewing.

Folder Name	File Name	Summary
.NET MAUI Project	SaveService.cs	Represent the base class for save operation.
Windows	SaveWindows.cs	Save implementation for Windows.
Android	SaveAndroid.cs	Save implementation for Android device.
Mac Catalyst	SaveMac.cs	Save implementation for Mac Catalyst device.
iOS	SaveIOS.cs	Save implementation for iOS device
iOS	PreviewControllerDS.cs QLPreviewItemFileSystem.cs	Helper classes for viewing the PowerPoint Presenatation in iOS device

Prerequisites:

Install the latest .NET SDK and Visual Studio Code.
Open Visual Studio Code and install the .NET MAUI for Visual Studio Code extension from the Extensions Marketplace.
Follow the step-by-step setup guide:
- Set up .NET MAUI with Visual Studio Code
- Steps for each platform

Step 1: Create a new C# .NET MAUI app project.

Open the command palette by pressing Ctrl+Shift+P and type .NET:New Project and enter.
Choose the .NET MAUI App template.

Choose .NET MAUI app from template

Select the project location, type the project name and press enter.
Then choose Create project.

Step 2: To convert a PowerPoint document to image in .NET MAUI app, install Syncfusion.PresentationRenderer.NET.Core to the MAUI project.

Press Ctrl + ` (backtick) to open the integrated terminal in Visual Studio Code.
Ensure you’re in the project root directory where your .csproj file is located.
Run the command dotnet add package Syncfusion.PresentationRenderer.NET.Core to install the NuGet package.

Add Syncfusion.PresentationRenderer.NET.Core NuGet package

NOTE

Starting with v16.2.0.x, if you reference Syncfusion^® assemblies from trial setup or from the NuGet feed, you also have to add “Syncfusion.Licensing” assembly reference and include a license key in your projects. Please refer to this link to know about registering Syncfusion^® license key in your application to use our components.

Step 3: Add a new button to the MainPage.xaml as shown below.

C#
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="Convert_PowerPoint_Presentation_to_Image.MainPage">

    <ScrollView>
        <Grid RowSpacing="25" RowDefinitions="Auto,Auto,Auto,Auto,*"
            Padding="{OnPlatform iOS='30,60,30,30', Default='30'}">
            <Button 
                Text="Convert PPTX to Image"
                FontAttributes="Bold"
                Grid.Row="0"
                SemanticProperties.Hint="Convert PPTX to Image"
                Clicked="ConvertPPTXtoImage"
                HorizontalOptions="Center" />
        </Grid>
    </ScrollView>
</ContentPage>

Step 4: Include the following namespaces in the MainPage.xaml.cs file.

C#
using Syncfusion.Presentation;
using Syncfusion.PresentationRenderer;

Step 5: Add a new action method ConvertPPTXtoImage in MainPage.xaml.cs and include the below code snippet to convert a PowerPoint to Image in .NET MAUI.

C#
//Loading an existing PowerPoint presentation.
Assembly assembly = typeof(App).GetTypeInfo().Assembly;
//Open the existing PowerPoint presentation with loaded stream.
using (IPresentation pptxDoc = Presentation.Open(assembly.GetManifestResourceStream("Convert_PowerPoint_Presentation_to_Image.Assets.Input.pptx")))
{
    //Initialize the PresentationRenderer.
    pptxDoc.PresentationRenderer = new PresentationRenderer();
    //Converts the first slide into image.
    Stream stream= pptxDoc.Slides[0].ConvertToImage(ExportImageFormat.Jpeg);
    //Reset the stream position.
    stream.Position = 0;
    //save and Launch the image file.
    SaveService saveService = new();
    saveService.SaveAndView("PPTXtoImage.Jpeg", "application/jpeg", stream as MemoryStream);
}

Step 6: Run the Application.

Select the target framework, device or emulator.
Press F5 to run the application.

You can download a complete working sample from GitHub.

By executing the program, you will get the image as follows.

PowerPoint to Image on macOS

Helper files for .NET MAUI

Refer the below helper files and add them into the mentioned project. These helper files allow you to save the stream as a physical file and open the file for viewing.

Folder Name	File Name	Summary
.NET MAUI Project	SaveService.cs	Represent the base class for save operation.
Windows	SaveWindows.cs	Save implementation for Windows.
Android	SaveAndroid.cs	Save implementation for Android device.
Mac Catalyst	SaveMac.cs	Save implementation for Mac Catalyst device.
iOS	SaveIOS.cs	Save implementation for iOS device
iOS	PreviewControllerDS.cs QLPreviewItemFileSystem.cs	Helper classes for viewing the PowerPoint Presenatation in iOS device

Click here to explore the rich set of Syncfusion^® PowerPoint Library (Presentation) features.

An online sample link to convert PowerPoint Presentation to image in ASP.NET Core.