How to change the image size during Markdown to Word conversion

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 change the image size during Markdown to Word conversion using C#.

Steps to change the image size during Markdown to Word conversion:

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 Program.cs file
   C#

using Syncfusion.DocIO.DLS;
using Syncfusion.DocIO; 
using System.Net;

4. Use the following code example to change the image size during Markdown to Word conversion.
   C#

using (FileStream inputFileStream = new FileStream(Path.GetFullPath(@"Data/Input.md"), FileMode.Open, FileAccess.Read))
{
   // Create a Word document instance.
   using (WordDocument document = new WordDocument())
   {
       // Hook the event to customize the image while importing Markdown.
       document.MdImportSettings.ImageNodeVisited += MdImportSettings_ImageNodeVisited;
       // Open the input Markdown file.
       document.Open(inputFileStream, FormatType.Markdown);
       // Find a picture by its alternative text and resize it.
       WPicture picture = document.FindItemByProperty(EntityType.Picture, "AlternativeText", "Mountain") as WPicture;
       picture.Height = 250;
       picture.Width = 250;
       // Save the modified document.
       using (FileStream outputFileStream = new FileStream(Path.GetFullPath(@"Output/Result.docx"), FileMode.Create, FileAccess.Write))
       {
           document.Save(outputFileStream, FormatType.Docx);
       }
   }
}

5. Use the following event handler to load the image based on the image source path when importing the Markdown files.
   C#

/// <summary>
/// Customizes image loading from local and remote sources during Markdown import.
/// </summary>
static void MdImportSettings_ImageNodeVisited(object sender, Syncfusion.Office.Markdown.MdImageNodeVisitedEventArgs args)
{
   // Set the image stream based on the image name from the input Markdown.
   if (args.Uri == "Road-550.png")
       args.ImageStream = new FileStream(Path.GetFullPath(@"Data/Road-550.png"), FileMode.Open);
   // Retrieve the image from the website and use it.
   else if (args.Uri.StartsWith("https://"))
   {
       WebClient client = new WebClient();
       // Download the image as a stream.
       byte[] image = client.DownloadData(args.Uri);
       Stream stream = new MemoryStream(image);
       // Set the retrieved image from the input Markdown.
       args.ImageStream = stream;
   }
}

You can download a complete working sample to change the image size during Markdown to Word conversion from the GitHub.

By executing the program, you will get the Word document as follows.

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 change the image size during Markdown to Word conversion.

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.

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