Compare Word Documents, Find Differences, and Accept or Reject Changes using C#

readme.md

Related blog post: Compare Word Documents using C#

AcceptRejectComparedChanges.cs

/*
 * Accept and reject identified changes by comparing Word documents using C#
 */
using (Comparer comparer = new Comparer("path/document-1.docx"))
{
    comparer.Add("path/document-2.docx");
    comparer.Compare();
    ChangeInfo[] changes = comparer.GetChanges();
    
    // Rejecting the first identified change and it will not be added to result document
    changes[0].ComparisonAction = ComparisonAction.Reject;
    comparer.ApplyChanges("path/rejected-change-result.docx", new ApplyChangeOptions { Changes = changes, SaveOriginalState = true });

    changes = comparer.GetChanges();
    changes[0].ComparisonAction = ComparisonAction.Accept;
    comparer.ApplyChanges("path/accepted-change-result.docx", new ApplyChangeOptions { Changes = changes });
}

CompareMultipleDocs.cs

/*
 * Compare Multiple Word Documents using C#
 */
using (Comparer comparer = new Comparer("path/document-1.docx"))
{
    comparer.Add("path/document-2.docx");
    comparer.Add("path/document-3.docx");
    comparer.Add("path/document-4.docx");

    comparer.Compare("path/compare-result.docx");
}

CompareProtectedWordDocs.cs

/*
 * Compare Password Protected Word Documents using C#
 */
using (Comparer comparer = new Comparer("path/protected-document-1.docx", new LoadOptions(){ Password = "SourceFilePassword" }))
{
    comparer.Add("path/protected-document-2.docx", new LoadOptions() { Password = "TargetFilePassword" });
    comparer.Compare("path/compared-protected-docs-result.docx");
}

CompareWordDocs.cs

/*
 * Compare Two Word Documents and Highlight Changes using C#
 */
using (Comparer comparer = new Comparer("path/document.docx"))
{
    comparer.Add("path/document-ver2.docx");
    comparer.Compare("path/compared-result.docx");
}