Learn how to convert DOCX to PDF with a Java REST API in just a few steps. DOCX — the modern Microsoft Word format introduced in Word 2007 — is an XML‑based file type built on the Open XML standard, using the .docx extension. It produces smaller files than the legacy .doc format and supports text, images, tables, charts, and other rich content. In contrast, a PDF (Portable Document Format) created by Adobe preserves a document’s exact layout across any application or operating system, and can be viewed, printed, shared, password‑protected, or digitally signed. This tutorial demonstrates how to perform DOCX‑to‑PDF conversion in Java using a low‑code API, complete with sample code.
Prerequisite
- Create account and get API credentials
- Download Aspose.Words Cloud SDK for Java
- Setup Java project with the above SDK
Steps to Convert DOCX to PDF in Java REST API
- Set Client ID and Client Secret for the API
- Create an instance of WordsAPI class with client credentials
- Specify input and output files
- Read input DOCX file and upload to cloud storage
- Create an object of WordsAPI with input and output file formats
- Call convertDocument method to Convert DOCX to PDF using REST API
- Save the output PDF file on local disk
Code for DOCX to PDF Conversion in Java Low Code API
With the sample code above, you can effortlessly convert a DOCX document to PDF using the Java REST API. Just provide the DOCX file via the Aspose.Words REST API SDK, then download the generated PDF and save it locally.
You can leverage this DOCX‑to‑PDF conversion in any no‑code or low‑code application across Windows, Linux, or macOS.
Looking to broaden your conversion toolkit? Check out our related guide on converting PDF to XLSX with the Java REST API: How to Convert PDF to XLSX with Java REST API
