In the world of document processing, the need to merge multiple Word documents into a single file is a common task, such as in reducing the number of documents, keeping similar kinds of content in a single file (i.e. invoices), and etc. Many online applications let you merge two or more MS Word documents, however, you may need to implement document merging features within your own web or desktop applications. For such a case, in this article, you will learn how to merge MS Word DOCX documents using Java.

Merge Word Documents with Java API

Aspose.Words for Java is a popular word processing API that lets you create, manipulate, and play with MS Word document formats within Java applications. Along with a wide range of document generation features, the API allows you to merge MS Word documents quite easily. You can download the API or install it using the following Maven configurations.

    <name>Aspose Java API</name>

Merge MS Word DOCX Documents using Java

Merging MS Word documents using Aspose.Words for Java is as easy as pie. Just load the documents and merge them by calling a single method. Below are the two MS Word documents that you will merge in the following code samples.

Word Documents to Merge

The following are the steps to merge two MS Word documents.

The following code sample shows how to merge MS Word documents (DOCX) using Java.

The following is the screenshot of the merged MS Word document.

Merged MS Word Documents

Merge MS Word DOCX with Additional Options

Aspose.Words for Java also provides some additional options to customize the appearance of the source document after performing the merger. The ImportFormatOptions class provides the following customization options.

The following are the steps to merge two MS Word documents with additional options.

The following code sample shows how to merge two MS Word documents with additional options using Java.


Merging Word documents in Java can be a powerful addition to your document processing application. With Aspose.Words for Java, you can efficiently merge Word documents and create a seamless workflow for handling and generating documents in your Java applications. This blog provided you with all the basic guidelines to merge MS Word documents in a Java application. Furthermore, you have learned how to customize the document merging feature with different options. You can explore more about Aspose.Words for Java using the documentation.

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