Compare multiple documents

GroupDocs.Comparison allows to compare more that 2 documents.

The following are the steps to compare multiple documents.

  • Instantiate Comparer object with source document path or stream;
  • Call Add method and specify target document path or stream. Repeat this step for every target document;
  • Call Compare method.

The following code sample shows how to compare multiple documents with specific options.

Compare multiple documents from local disk

using (Comparer comparer = new Comparer("source.docx")
{
	comparer.Add("target1.docx");
    comparer.Add("target2.docx");
    comparer.Add("target3.docx");
    comparer.Compare("result.docx");
}

Compare multiple documents from stream

using (Comparer comparer = new Comparer(File.OpenRead("source.docx"))
{
	comparer.Add(File.OpenRead("target1.docx"));
    comparer.Add(File.OpenRead("target2.docx"));
    comparer.Add(File.OpenRead("target3.docx"));
    comparer.Compare(File.Create("result.docx"));
}

More resources

GitHub Examples

You may easily run the code above and see the feature in action in our GitHub examples:

Free Online App

Along with full-featured .NET library we provide simple, but powerful free Apps.
You are welcome to compare your DOC or DOCX, XLS or XLSX, PPT or PPTX, PDF, EML, EMLX, MSG and other documents with free to use online GroupDocs Comparison App.