Convert PDF to Text in Java - Complete Guide

Extract text from PDFs using the WhatsMate PDF-to-Text REST API

Posted on January 1, 2026   Share on Facebook Share on LinkedIn Share on Twitter Share on Google+

Last reviewed: March 16, 2026  

Extract Text from PDFs with Java

Need to extract text from PDF documents programmatically in your Java applications? This guide walks you through converting PDF files to text using Java and the WhatsMate PDF-to-Text REST API. Perfect for Java developers, enterprise engineers, and anyone who wants to automate PDF text extraction in their Java workflows.

📋 Prerequisites

Before you begin, ensure you have:

  1. Basic Java knowledge - Familiarity with Java compilation and execution
  2. PDF URL - A publicly accessible URL to your PDF document

ℹ️ Note: The trial account allows up to 20 PDF-to-Text API calls for learning purposes. Files up to 1 MB can use the synchronous API shown here. Subscribe to a Premium plan for production use and larger files.

🎥 Video Walkthrough

📝 Step-by-Step Implementation

Follow these steps to extract text from a PDF using Java:

1. Copy the Script Template

Start by copying the following source code into a Java file named SyncPdfTextExtractor.java:

2. Configure the Parameters

Customize this key parameter in the script:

  • Line 20: Replace with the URL of your PDF document

3. Compile the Java File

Compile your Java source code:

javac SyncPdfTextExtractor.java

4. Run the Extraction

Execute the compiled class to see the extracted text:

java SyncPdfTextExtractor

⚠️ Large PDF files? If your PDF is larger than 1 MB, you’ll need to use the asynchronous API instead. See an example in Java for handling larger files.

🔧 Common Use Cases

This automation approach is ideal for:

  • Data extraction pipelines - Pull text from reports, invoices, or forms
  • Content indexing - Make PDF content searchable in your systems
  • Batch processing - Extract text from multiple PDFs automatically
  • Integration with workflows - Add PDF text extraction to Java applications

🚀 Get Started Today

Ready to automate your PDF text extraction? You’ll need an account to access the API. Sign up for a Premium plan and start extracting text within minutes!

Next Steps: Once you’ve mastered PDF-to-Text conversion in Java, explore extracting text in other programming languages through the PDF-to-Text API Getting Started Guide.