---
title: "Merge PDF in Java with Easy to Integrate REST API | Nutrient"
canonical_url: "https://www.nutrient.io/guides/document-converter/document-converter-services/merge-or-combine/java/"
md_url: "https://www.nutrient.io/guides/document-converter/document-converter-services/merge-or-combine/java.md"
last_updated: "2026-05-15T19:10:04.936Z"
description: "Merge PDF in Java with Easy to Integrate REST | Nutrient API documentation for Nutrient Document Converter SDK with methods, properties, and code examples."
---

# Java Merge PDF API

Merge and combine multiple PDF files using Java and our REST API. Merge 30+ file types into one document by automatically converting HTML, CAD, MS Office, and image files to PDF. Integrate additional capabilities into your workflow when merging documents, like adding a watermark, password, or bookmark. No server setup is required — simply start your free trial or sign up for an account to merge PDF files in your application or workflow.

## Code Sample: Merge PDFs Using Java

Explore our code samples to learn how you can quickly merge PDF documents in your application or workflow. Combine different file formats into a single PDF using the following Java code samples.

1. [Merge Files and HTML to PDF Using Java](https://github.com/Muhimbi/PDF-Converter-Services-Online/tree/master/clients/v1/java/samples/merge_to_pdf)

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## Related pages

- [Merge PDF API](/guides/document-converter/document-converter-services/merge-or-combine.md)
- [Merge PDFs using C#](/guides/document-converter/document-converter-services/merge-or-combine/csharp.md)
- [Merge PDFs Using .NET Core](/guides/document-converter/document-converter-services/merge-or-combine/dotnet-core.md)
- [Merge files with API](/guides/document-converter/document-converter-services/merge-or-combine/code-sample-merge-files.md)
- [Merge PDFs Using JavaScript](/guides/document-converter/document-converter-services/merge-or-combine/javascript.md)
- [Merge PDF Using PHP](/guides/document-converter/document-converter-services/merge-or-combine/php.md)