Convert PowerPoint Presentation to Image in AWS Elastic Beanstalk

8 Nov 20245 minutes to read

Syncfusion PowerPoint is a .NET Core 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 Presentation to image in AWS Elastic Beanstalk.

Steps to convert PowerPoint Presentation to Image in AWS Elastic Beanstalk

Step 1: Create a new ASP.NET Core Web application (Model-View-Controller) project.

Step 2: Install the following Nuget packages in your application from Nuget.org.

• Syncfusion.PresentationRenderer.Net.Core
• SkiaSharp.NativeAssets.Linux.NoDependencies v2.88.8

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: Include the following namespaces in the HomeController.cs file.

C#

using Syncfusion.Presentation;
using Syncfusion.PresentationRenderer;

Step 4: A default action method named Index will be present in HomeController.cs. Right click on Index method and select Go To View where you will be directed to its associated view page Index.cshtml.

Step 5: Add a new button in the Index.cshtml as shown below.

C#

@{
    Html.BeginForm("ConvertPPTXToImage", "Home", FormMethod.Get);
    {
        <div>
            <input type="submit" value="Convert PPTX to image" style="width:175px;height:27px" />
        </div>
    }
    Html.EndForm();
}

Step 6: Include the below code snippet in the Homecontroller.cs file to convert a PowerPoint presentation to image and download it.

C#

public IActionResult ConvertPPTXToImage()
 {
     using (FileStream inputStream = new FileStream(Path.GetFullPath("wwwroot/Data/Input.pptx"), FileMode.Open, FileAccess.Read))
     {
         //Open the existing PPTX document.
         using (IPresentation pptxDoc = Presentation.Open(inputStream))
         {                   
             //Hooks the font substitution event.
             pptxDoc.FontSettings.SubstituteFont += FontSettings_SubstituteFont;
             //Initialize the PresentationRenderer to perform image conversion.
             pptxDoc.PresentationRenderer = new PresentationRenderer();
             //Convert PowerPoint slide to image as stream.
             MemoryStream stream = new MemoryStream();
             stream = (MemoryStream)pptxDoc.Slides[0].ConvertToImage(ExportImageFormat.Jpeg);
             //Unhooks the font substitution event after converting to image file.
             pptxDoc.FontSettings.SubstituteFont -= FontSettings_SubstituteFont;
             stream.Position = 0;
             //Download image file in the browser.
             return File(stream, "image/jpeg", "PPTXToimage_Page1.jpeg");
         }
     }
 }

 //Sets the alternate font when a specified font is not installed in the production environment.
 private void FontSettings_SubstituteFont(object sender, SubstituteFontEventArgs args)
 {
     if (args.OriginalFontName == "Calibri" && args.FontStyle == FontStyle.Regular)
         args.AlternateFontStream = new FileStream(Path.GetFullPath("wwwroot/Fonts/calibri.ttf"), FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
 }

Steps to publish as AWS Elastic Beanstalk

Step 1: Right-click the project and select Publish to AWS Elastic Beanstalk (Legacy) option.

Step 2: Select the Deployment Target as Create a new application environment and click Next button.

Step 3: Choose the Environment Name in the dropdown list and the URL will be automatically assign and check the URL is available, if available click next otherwise change the URL.

Step 4: Select the instance type in t3a.micro from the dropdown list and click next.

Step 5: Click the Next button to proceed further.

Step 6: Click the Next button.

Step 7: Click the Deploy button to deploy the sample on AWS Elastic Beanstalk.

Step 8: After changing the status from Updating to Environment is healthy, click the URL.

Step 9: After opening the provided URL, click Convert PPTX to Image button to download the image file.

You can download a complete working sample from GitHub.

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

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.