How to crop an image in ASP.NET Core Presentation using C#?

Syncfusion PowerPoint is a .NET PowerPoint library used to create, read, and edit PowerPoint presentation programmatically without Microsoft PowerPoint or interop dependencies. Using this library, you can crop an image in a Presentation using C#.

Steps to crop an image in a Presentation using C#

Step 1: Create a new .NET Core console application project.

Step 2: Install the Syncfusion.Presentation.Net.Core NuGet package as a reference to your project from NuGet.org.

Step 3: Include the following namespaces in Program.cs file.

using Syncfusion.Presentation;

Step 4: Include the below code snippet in Program.cs to crop an image in a Presentation.

//Open an existing PowerPoint Presentation.
using (FileStream inputStream = new FileStream("Sample.pptx", FileMode.Open, FileAccess.Read))
{
   using (IPresentation pptxDoc = Presentation.Open(inputStream))
   {
       //Retrieve the first slide from the Presentation.
       ISlide slide = pptxDoc.Slides[0];
       //Retrieve the first picture from the slide.
       IPicture picture = slide.Pictures[0];

      //Apply bounding box size and position.
      picture.Crop.ContainerWidth = 114.48f;
      picture.Crop.ContainerHeight = 56.88f;
      picture.Crop.ContainerLeft = 94.32f;
      picture.Crop.ContainerTop = 128.16f;
      
      //Apply cropping size and offsets.
      picture.Crop.Width = 900.72f;
      picture.Crop.Height = 74.88f;
      picture.Crop.OffsetX = 329.04f;
      picture.Crop.OffsetY = -9.36f;

       //Save the PowerPoint Presentation as stream.
       using (FileStream outputStream = new FileStream("Output.pptx", FileMode.Create))
       {
           pptxDoc.Save(outputStream);
       }        
   }       
}

A complete working sample to crop an image in a Presentation using C# can be downloaded from GitHub.

By executing the program, you will get the PowerPoint presentation as follows.

Conclusion

I hope you enjoyed learning about how to crop an image in ASP.NET Core Presentation using C#.

You can refer to our ASP.NET Core Presentation feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications. You can also explore our ASP.NET Core Presentation example to understand how to create and manipulate data.

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