Compare Word documents in C# using .NET Word Library

The Syncfusion .NET Word Library (DocIO) allows users to identify the changes between two versions of a Word document as tracked changes by comparing them, without requiring Microsoft Word or interop dependencies. With precision, it programmatically highlights insertions, deletions, and formatting changes.

• Compare Word documents documentation.
• Explore more examples of comparing Word documents.
• Compare Word documents online demo.

How to compare Word documents in C#

1. Install NuGet package: Install the Syncfusion.DocIORenderer.Net.Core NuGet package in your project.  
2. Load in .NET Word Library: Create WordDocument objects for the original and revised Word documents by passing the FileStream object.
3. Compare Word documents: Use the Compare method of the WordDocument class to compare the Word documents.
4. Save Word document: Save the WordDocument object to the FileStream object.  

Here is an example of how to compare the Word documents in C# using the Syncfusion .NET Word Library (DocIO). 

//Load the original Word document.
using FileStream originalDocumentStream = new FileStream("OriginalDocument.docx", FileMode.Open, FileAccess.Read);
using WordDocument originalDocument = new WordDocument(originalDocumentStream, FormatType.Docx);

//Load the revised Word document.
using FileStream revisedDocumentStream = new FileStream("RevisedDocument.docx", FileMode.Open, FileAccess.Read);
using WordDocument revisedDocument = new WordDocument(revisedDocumentStream, FormatType.Docx);

//Compare the original and revised Word documents.
originalDocument.Compare(revisedDocument);

//Save the Word document.
using FileStream outputDocumentStream = new FileStream("Result.docx", FileMode.Create, FileAccess.ReadWrite);
originalDocument.Save(outputDocumentStream, FormatType.Docx);

Reference

• Effortlessly Compare Word Documents with C#: A Step-by-Step Guide.