How to extract and save charts as images from a Word document?

Syncfusion® Essential® DocIO is a .NET Word library used to create, read, edit, and convert Word documents programmatically without Microsoft Word or interop dependencies. Using this library, you can extract and save charts as images from a Word document using C#.

To achieve this, use the FindAllItemsByProperty API to extract all charts from the Word document, and then save each chart as an image.

Steps to extract and save charts as images from a Word document:

1. Create a new .NET Core console application project.
   
   
2. Install the Syncfusion.DocIORenderer.NET.Core NuGet package as a reference to your .NET Core application from NuGet.org.
   
   

3. Include the following namespaces in the Program.cs file.
   C#

using Syncfusion.DocIO.DLS;
using Syncfusion.DocIORenderer;

4. Use the following code example to extract and save charts as images from a Word document.
   C#

// Load the Word document.
using (WordDocument document = new WordDocument(Path.GetFullPath(@"Data/Template.docx")))
{
   // Find all chart elements in the Word document by EntityType.
   List<Entity> charts = document.FindAllItemsByProperty(EntityType.Chart, null, null);
   // Create an instance of DocIORenderer.
   using (DocIORenderer renderer = new DocIORenderer())
   {
       // Loop through each chart found in the document.
       for (int i = 0; i < charts.Count; i++)
       {
           WChart chart = charts[i] as WChart;
           // Convert the chart to an image stream.
           using (Stream stream = chart.SaveAsImage())
           {
               // Create a file stream to save the image to disk.
               using (FileStream fileStreamOutput = File.Create(Path.GetFullPath(@"Output/Chart" + i + ".jpeg")))
               {
                   // Copy the image stream to the output file.
                   stream.CopyTo(fileStreamOutput);
               }
           }
       }
   }
}

You can download a complete working sample to extract and save charts as images from a Word document from GitHub.

Take a moment to peruse the documentation where you can find basic Word document processing options along with the features like mail merge, merge, split, and compare Word documents, find and replace text in the Word document, protect the Word documents, and most importantly, the PDF and Image conversions with code examples.

Conclusion

I hope you enjoyed learning about how to extract and save charts as images in a .NET Core Word document.

You can refer to our ASP.NET Core DocIO 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 DocIO example to understand how to create and manipulate data.

For current customers, you can check out our components from the License and Downloads page. If you are new to Syncfusion®, you can try our 30-day free trial to check out our other controls.

If you have any queries or require clarifications, please let us know in the comments section below. You can also contact us through our support forums, Direct-Trac, or feedback portal. We are always happy to assist you!