Compare Two Word Documents in Java

MS Word provides a built-in "Compare" feature that helps users quickly find all the differences between two Word documents. In this article, I will share how to compare two Word documents programmatically using Free Spire.Doc for Java.

Import Jar Dependency

Method 1: Download the free library and unzip it. Then add the Spire.Doc.jar file to your Java application as dependency.
Method 2: Directly add the jar dependency to maven project by adding the following configurations to the pom.xml.

<repositories>
   <repository>
      <id>com.e-iceblue</id>
      <name>e-iceblue</name>
      <url>http://repo.e-iceblue.com/nexus/content/groups/public/</url>
   </repository>
</repositories>
<dependencies>
   <dependency>
      <groupId>e-iceblue</groupId>
      <artifactId>spire.doc.free</artifactId>
      <version>5.1.0</version>
   </dependency>
</dependencies>

Sample Code

import com.spire.doc.Document;

public class CompareWordDocuments {
    public static void main(String[] args) throws Exception {

        //Create a Document instance
        Document doc1 = new Document();
        //Load the first Word document
        doc1.loadFromFile("Doc1.docx");

        //Create a Document instance
        Document doc2 = new Document();
        //Load the second Word document
        doc2.loadFromFile("Doc2.docx");

        //Compare the two Word documents
        doc1.compare(doc2, "Author");

        //Save the result to file
        doc1.saveToFile("Compare.docx");
    }
}