How to Find and Remove Corrupted Images in .NET Core 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 find and remove corrupted images in a Word document using C#.

To achieve this, use the FindAllItemsByProperty method to retrieve all images from a Word document. Then, convert each image’s byte data into an instance of Image and check its format. If an image is corrupted or unsupported (ImageFormat.Unknown), remove it from the document. Finally, save the modified document.

Steps to find and remove corrupted images in a Word document:

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

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

using Syncfusion.DocIO;
using Syncfusion.DocIO.DLS;
using Syncfusion.Drawing;

4. Use the following code example to find and remove corrupted images in a Word document.
   C#

using (FileStream inputStream = new FileStream(@"Data/Template.docx", FileMode.Open, FileAccess.ReadWrite))
{
   // Opens an input Word template.
   WordDocument document = new WordDocument(inputStream, FormatType.Docx);
   // Find all picture in the document.
   List<Entity> images = document.FindAllItemsByProperty(EntityType.Picture, null, null);
   // Iterate through each image in the document.
   foreach (Entity entity in images)
   {
       WPicture picture = entity as WPicture;
       // Convert the image bytes into a memory stream.
       MemoryStream stream = new MemoryStream(picture.ImageBytes);
       // Create an Image object from the memory stream.
       Image image = Image.FromStream(stream);
       // Check if the image format is unknown.
       if (image.RawFormat == ImageFormat.Unknown)
       {
           // Remove the invalid image from the document.
           picture.OwnerParagraph.ChildEntities.Remove(picture);
       }
   }
   // Save the modified document to the specified output file.
   using (FileStream outputStream = new FileStream(@"Output/Result.docx", FileMode.Create, FileAccess.Write))
   {
       document.Save(outputStream, FormatType.Docx);
   }
}

You can download a complete working sample to find and remove corrupted images in a Word document from the GitHub.

Take a moment to peruse the documentation where you can find basic Word document processing options along with 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 find and remove corrupted images in .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 with configuration specifications. You can also explore our ASP.NET Core DocIO example to understand how to create and manipulate data.

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