Comparing Word documents is a common requirement when working with reports, contracts, or any content that undergoes frequent revisions. In C#, you can automate this process to detect changes, highlight differences, and generate a consolidated comparison document. This article walks through several ways to compare Word documents using C#.

Installing the Required Library

Before you start, install the Free Spire.Doc library via NuGet. In your Visual Studio Package Manager Console, run:

Install-Package FreeSpire.Doc

This library provides APIs to load, edit, and compare Word documents in C#. Once installed, import the following namespaces in your class:

using Spire.Doc ; using Spire.Doc.Documents.Comparison ;

1. Basic Word Document Comparison in Csharp

The simplest scenario is to compare two documents and mark the differences with tracked changes.…