Create, read and edit a PowerPoint file in ASP.NET Core
17 Feb 202519 minutes to read
You can create or edit a PowerPoint file with the Syncfusion® ASP.NET Core PowerPoint library. The below are the steps.
To quickly get started with creating a PowerPoint file in ASP.NET Core, check this video:
Prerequisites:
- Visual Studio 2022.
- Install .NET 8 SDK or later.
Step 1: Create a new C# ASP.NET Core Web application project.
Step 2: Install the Syncfusion.Presentation.Net.Core NuGet package as reference to your .NET Standard applications from NuGet.org.
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: After installing the Syncfusion.Presentation.Net.Core nuget package, the following assemblies were included in our project.
- Syncfusion.Compression.Net.Core
- Syncfusion.Licensing
- Syncfusion.OfficeChart.Net.Core
- Syncfusion.Presentation.Portable
Step 4: The below code snippets demonstrate how to create a PowerPoint Presentation in ASP.NET Core platform.
Create Presentation instance:
//Create a new instance of PowerPoint Presentation file
IPresentation pptxDoc = Presentation.Create();Add a new slide
//Add a new slide to file and apply background color
ISlide slide = pptxDoc.Slides.Add(SlideLayoutType.TitleOnly);Apply Background
//Specify the fill type and fill color for the slide background
slide.Background.Fill.FillType = FillType.Solid;
slide.Background.Fill.SolidFill.Color = ColorObject.FromArgb(232, 241, 229);Add title content:
//Add title content to the slide by accessing the title placeholder of the TitleOnly layout-slide
IShape titleShape = slide.Shapes[0] as IShape;
titleShape.TextBody.AddParagraph("Company History").HorizontalAlignment = HorizontalAlignmentType.Center;Add description content:
//Add description content to the slide by adding a new TextBox
IShape descriptionShape = slide.AddTextBox(53.22, 141.73, 874.19, 77.70);
descriptionShape.TextBody.Text = "IMN Solutions PVT LTD is the software company, established in 1987, by George Milton. The company has been listed as the trusted partner for many high-profile organizations since 1988 and got awards for quality products from reputed organizations.";Add bullet points:
//Add bullet points to the slide
IShape bulletPointsShape = slide.AddTextBox(53.22, 270, 437.90, 116.32);
//Add a paragraph for a bullet point
IParagraph firstPara = bulletPointsShape.TextBody.AddParagraph("The company acquired the MCY corporation for 20 billion dollars and became the top revenue maker for the year 2015.");
//Format how the bullets should be displayed
firstPara.ListFormat.Type = ListType.Bulleted;
firstPara.LeftIndent = 35;
firstPara.FirstLineIndent = -35;
// Add another paragraph for the next bullet point
IParagraph secondPara = bulletPointsShape.TextBody.AddParagraph("The company is participating in top open source projects in automation industry.");
//Format how the bullets should be displayed
secondPara.ListFormat.Type = ListType.Bulleted;
secondPara.LeftIndent = 35;
secondPara.FirstLineIndent = -35;Add an image:
//Gets a picture as stream.
FileStream pictureStream = new FileStream("Image.jpg", FileMode.Open);
//Adds the picture to a slide by specifying its size and position.
slide.Shapes.AddPicture(pictureStream, 499.79, 238.59, 364.54, 192.16);You can download the image used in the sample from here.
Add a shape:
//Add an auto-shape to the slide
IShape stampShape = slide.Shapes.AddShape(AutoShapeType.Explosion1, 48.93, 430.71, 104.13, 80.54);
//Format the auto-shape color by setting the fill type and text
stampShape.Fill.FillType = FillType.None;
stampShape.TextBody.AddParagraph("IMN").HorizontalAlignment = HorizontalAlignmentType.Center;Save and close the presentation:
//Save the PowerPoint Presentation as stream
FileStream outputStream = new FileStream("Sample.pptx", FileMode.Create);
pptxDoc.Save(outputStream);
//Release all resources from stream
outputStream.Dispose();
//Close the PowerPoint presentation
pptxDoc.Close();You can download a complete working sample from GitHub.
The output of the above code example will generate the below PowerPoint slide.
Read and edit a PowerPoint file in ASP.NET Core
You can edit an existing PowerPoint file using this library. The below code snippet demonstrates accessing a shape from a slide and changing the text within it.
//Open an existing PowerPoint presentation
IPresentation pptxDoc = Presentation.Open(new FileStream("Sample.pptx",FileMode.Open));
//Gets the first slide from the PowerPoint presentation
ISlide slide = pptxDoc.Slides[0];
//Gets the first shape of the slide
IShape shape = slide.Shapes[0] as IShape;
//Change the text of the shape
if(shape.TextBody.Text == "Company History")
shape.TextBody.Text = "Company Profile";
//Save the PowerPoint presentation as stream
FileStream outputStream = new FileStream("Output.pptx", FileMode.Create);
pptxDoc.Save(outputStream);
outputStream.Position = 0;
outputStream.Flush();
outputStream.Dispose();
//Close the PowerPoint presentation
pptxDoc.Close();Step 5: Build the project.
Click on Build → Build Solution or Ctrl+Shift+B to build the project.
Step 6: Run the project.
Click the Start button (green arrow) or press F5 to run the app.
You can download a complete working sample from GitHub.
Prerequisites:
- Visual Studio Code.
- Install .NET 8 SDK or later.
- Open Visual Studio Code and install the C# for Visual Studio Code extension from the Extensions Marketplace.
Step 1: Create a new ASP.NET Core Web application project.
- Open the command palette by pressing Ctrl+Shift+P and type .NET:New Project and enter.
- Choose the ASP.NET Core Web App( Model-View-Controller) MVC template.
- Select the project location, type the project name and press enter.
- Then choose Create project.
Step 2: To create a PowerPoint in ASP.NET Core Web app, install Syncfusion.Presentation.Net.Core to the ASP.NET Core 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.Presentation.Net.Coreto install the 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: After installing the Syncfusion.Presentation.Net.Core nuget package, the following assemblies were included in our project.
- Syncfusion.Compression.Net.Core
- Syncfusion.Licensing
- Syncfusion.OfficeChart.Net.Core
- Syncfusion.Presentation.Portable
Step 4: The below code snippets demonstrate how to create a PowerPoint Presentation in ASP.NET Core platform.
Create Presentation instance:
//Create a new instance of PowerPoint Presentation file
IPresentation pptxDoc = Presentation.Create();Add a new slide
//Add a new slide to file and apply background color
ISlide slide = pptxDoc.Slides.Add(SlideLayoutType.TitleOnly);Apply Background
//Specify the fill type and fill color for the slide background
slide.Background.Fill.FillType = FillType.Solid;
slide.Background.Fill.SolidFill.Color = ColorObject.FromArgb(232, 241, 229);Add title content:
//Add title content to the slide by accessing the title placeholder of the TitleOnly layout-slide
IShape titleShape = slide.Shapes[0] as IShape;
titleShape.TextBody.AddParagraph("Company History").HorizontalAlignment = HorizontalAlignmentType.Center;Add description content:
//Add description content to the slide by adding a new TextBox
IShape descriptionShape = slide.AddTextBox(53.22, 141.73, 874.19, 77.70);
descriptionShape.TextBody.Text = "IMN Solutions PVT LTD is the software company, established in 1987, by George Milton. The company has been listed as the trusted partner for many high-profile organizations since 1988 and got awards for quality products from reputed organizations.";Add bullet points:
//Add bullet points to the slide
IShape bulletPointsShape = slide.AddTextBox(53.22, 270, 437.90, 116.32);
//Add a paragraph for a bullet point
IParagraph firstPara = bulletPointsShape.TextBody.AddParagraph("The company acquired the MCY corporation for 20 billion dollars and became the top revenue maker for the year 2015.");
//Format how the bullets should be displayed
firstPara.ListFormat.Type = ListType.Bulleted;
firstPara.LeftIndent = 35;
firstPara.FirstLineIndent = -35;
// Add another paragraph for the next bullet point
IParagraph secondPara = bulletPointsShape.TextBody.AddParagraph("The company is participating in top open source projects in automation industry.");
//Format how the bullets should be displayed
secondPara.ListFormat.Type = ListType.Bulleted;
secondPara.LeftIndent = 35;
secondPara.FirstLineIndent = -35;Add an image:
//Gets a picture as stream.
FileStream pictureStream = new FileStream("Image.jpg", FileMode.Open);
//Adds the picture to a slide by specifying its size and position.
slide.Shapes.AddPicture(pictureStream, 499.79, 238.59, 364.54, 192.16);You can download the image used in the sample from here.
Add a shape:
//Add an auto-shape to the slide
IShape stampShape = slide.Shapes.AddShape(AutoShapeType.Explosion1, 48.93, 430.71, 104.13, 80.54);
//Format the auto-shape color by setting the fill type and text
stampShape.Fill.FillType = FillType.None;
stampShape.TextBody.AddParagraph("IMN").HorizontalAlignment = HorizontalAlignmentType.Center;Save and close the presentation:
//Save the PowerPoint Presentation as stream
FileStream outputStream = new FileStream("Sample.pptx", FileMode.Create);
pptxDoc.Save(outputStream);
//Release all resources from stream
outputStream.Dispose();
//Close the PowerPoint presentation
pptxDoc.Close();You can download a complete working sample from GitHub.
The output of the above code example will generate the below PowerPoint slide.
Read and edit a PowerPoint file in ASP.NET Core
You can edit an existing PowerPoint file using this library. The below code snippet demonstrates accessing a shape from a slide and changing the text within it.
//Open an existing PowerPoint presentation
IPresentation pptxDoc = Presentation.Open(new FileStream("Sample.pptx",FileMode.Open));
//Gets the first slide from the PowerPoint presentation
ISlide slide = pptxDoc.Slides[0];
//Gets the first shape of the slide
IShape shape = slide.Shapes[0] as IShape;
//Change the text of the shape
if(shape.TextBody.Text == "Company History")
shape.TextBody.Text = "Company Profile";
//Save the PowerPoint presentation as stream
FileStream outputStream = new FileStream("Output.pptx", FileMode.Create);
pptxDoc.Save(outputStream);
outputStream.Position = 0;
outputStream.Flush();
outputStream.Dispose();
//Close the PowerPoint presentation
pptxDoc.Close();Step 5: Build the project.
Run the following command in terminal to build the project.
dotnet build
Step 6: Run the project.
Run the following command in terminal to run the project.
dotnet run
You can download a complete working sample from GitHub.
Prerequisites:
- JetBrains Rider.
- Install .NET 8 SDK or later.
Step 1. Open JetBrains Rider and create a new ASP.NET Core Web application project.
- Launch JetBrains Rider.
- Click new solution on the welcome screen.
- In the new Solution dialog, select Project Type as Web.
- Select the target framework (e.g., .NET 8.0, .NET 9.0) and template as Web App(Model-View-Controller).
- Enter a project name and specify the location.
- Click create.
Step 2: Install the NuGet package from NuGet.org.
- Click the NuGet icon in the Rider toolbar and type Syncfusion.Presentation.Net.Core in the search bar.
- Ensure that “nuget.org” is selected as the package source.
- Select the latest Syncfusion.Presentation.Net.Core NuGet package from the list.
- Click the + (Add) button to add the package.
- Click the Install button to complete the installation.
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: After installing the Syncfusion.Presentation.Net.Core nuget package, the following assemblies were included in our project.
- Syncfusion.Compression.Net.Core
- Syncfusion.Licensing
- Syncfusion.OfficeChart.Net.Core
- Syncfusion.Presentation.Portable
Step 4: The below code snippets demonstrate how to create a PowerPoint Presentation in ASP.NET Core platform.
Create Presentation instance:
//Create a new instance of PowerPoint Presentation file
IPresentation pptxDoc = Presentation.Create();Add a new slide
//Add a new slide to file and apply background color
ISlide slide = pptxDoc.Slides.Add(SlideLayoutType.TitleOnly);Apply Background
//Specify the fill type and fill color for the slide background
slide.Background.Fill.FillType = FillType.Solid;
slide.Background.Fill.SolidFill.Color = ColorObject.FromArgb(232, 241, 229);Add title content:
//Add title content to the slide by accessing the title placeholder of the TitleOnly layout-slide
IShape titleShape = slide.Shapes[0] as IShape;
titleShape.TextBody.AddParagraph("Company History").HorizontalAlignment = HorizontalAlignmentType.Center;Add description content:
//Add description content to the slide by adding a new TextBox
IShape descriptionShape = slide.AddTextBox(53.22, 141.73, 874.19, 77.70);
descriptionShape.TextBody.Text = "IMN Solutions PVT LTD is the software company, established in 1987, by George Milton. The company has been listed as the trusted partner for many high-profile organizations since 1988 and got awards for quality products from reputed organizations.";Add bullet points:
//Add bullet points to the slide
IShape bulletPointsShape = slide.AddTextBox(53.22, 270, 437.90, 116.32);
//Add a paragraph for a bullet point
IParagraph firstPara = bulletPointsShape.TextBody.AddParagraph("The company acquired the MCY corporation for 20 billion dollars and became the top revenue maker for the year 2015.");
//Format how the bullets should be displayed
firstPara.ListFormat.Type = ListType.Bulleted;
firstPara.LeftIndent = 35;
firstPara.FirstLineIndent = -35;
// Add another paragraph for the next bullet point
IParagraph secondPara = bulletPointsShape.TextBody.AddParagraph("The company is participating in top open source projects in automation industry.");
//Format how the bullets should be displayed
secondPara.ListFormat.Type = ListType.Bulleted;
secondPara.LeftIndent = 35;
secondPara.FirstLineIndent = -35;Add an image:
//Gets a picture as stream.
FileStream pictureStream = new FileStream("Image.jpg", FileMode.Open);
//Adds the picture to a slide by specifying its size and position.
slide.Shapes.AddPicture(pictureStream, 499.79, 238.59, 364.54, 192.16);You can download the image used in the sample from here.
Add a shape:
//Add an auto-shape to the slide
IShape stampShape = slide.Shapes.AddShape(AutoShapeType.Explosion1, 48.93, 430.71, 104.13, 80.54);
//Format the auto-shape color by setting the fill type and text
stampShape.Fill.FillType = FillType.None;
stampShape.TextBody.AddParagraph("IMN").HorizontalAlignment = HorizontalAlignmentType.Center;Save and close the presentation:
//Save the PowerPoint Presentation as stream
FileStream outputStream = new FileStream("Sample.pptx", FileMode.Create);
pptxDoc.Save(outputStream);
//Release all resources from stream
outputStream.Dispose();
//Close the PowerPoint presentation
pptxDoc.Close();You can download a complete working sample from GitHub.
The output of the above code example will generate the below PowerPoint slide.
Read and edit a PowerPoint file in ASP.NET Core
You can edit an existing PowerPoint file using this library. The below code snippet demonstrates accessing a shape from a slide and changing the text within it.
//Open an existing PowerPoint presentation
IPresentation pptxDoc = Presentation.Open(new FileStream("Sample.pptx",FileMode.Open));
//Gets the first slide from the PowerPoint presentation
ISlide slide = pptxDoc.Slides[0];
//Gets the first shape of the slide
IShape shape = slide.Shapes[0] as IShape;
//Change the text of the shape
if(shape.TextBody.Text == "Company History")
shape.TextBody.Text = "Company Profile";
//Save the PowerPoint presentation as stream
FileStream outputStream = new FileStream("Output.pptx", FileMode.Create);
pptxDoc.Save(outputStream);
outputStream.Position = 0;
outputStream.Flush();
outputStream.Dispose();
//Close the PowerPoint presentation
pptxDoc.Close();Step 5: Build the project.
Click the Build button in the toolbar or press Ctrl+Shift+B to build the project.
Step 6: Run the project.
Click the Run button (green arrow) in the toolbar or press F5 to run the app.
You can download a complete working sample from GitHub.
Click here to explore the rich set of Syncfusion® PowerPoint Library (Presentation) features.
An online sample link to create a PowerPoint Presentation in ASP.NET Core.