Manually combining DOT files can be time-consuming and prone to incorrect formatting. Because these Word template files can represent reports, standardized forms, or reusable document layouts used across teams, a programmatic solution to join them is valuable. This article explains how to merge DOT files in Java applications using the robust Java REST API. It allows you to combine multiple Word template files into a unified output without much effort. The process can be automated and integrated into existing workflows, making it equally suitable for business users and technical teams.

Steps to Merge DOT Files Using Java

1. Download the GroupDocs.Merger Cloud SDK for Java and create a new project
2. Obtain and set up your API credentials with the Configuration class
3. Initialize the DocumentApi class for merging DOT files
4. Configure the source DOT files to join using FileInfo and JoinItem
5. Define the merging options, including the output file with JoinOptions
6. Process the request to join two DOT files with the join() method

Adding DOT file merging to Java applications simplifies document handling across web portals, internal tools, and automated systems. With the REST API, developers do not need to manage file parsing or template compatibility. The process defined by the above steps adapts easily if templates are updated or reorganized, without requiring changes to the surrounding workflow. Organizations that rely on standardized document templates can merge Word DOT files consistently while keeping the process flexible.

Code to Merge DOT Files Using Java

We explored how the GroupDocs.Merger Cloud Java SDK enables a straightforward workflow for merging DOT files in Java without complex document logic from scratch. By using a REST-based approach, it supports scalable document processing and helps keep document merger applications focused on their primary tasks. For anyone looking to efficiently combine Word template files, our Java REST API offers a clean and adaptable path forward.

If you are building spreadsheet processing solutions, please refer to our step-by-step guide on Merging ODS Files using the Java REST API.