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Top Java PDF Generation Libraries Compared

· 12 min read
Michał Szymanowski
Michał Szymanowski
PDFBolt Co-Founder

Top Java PDF Generation Libraries Compared in 2025

Java applications frequently need to produce PDF files – invoices, reports, contracts, shipping labels. The library you pick determines how much code you write, what web standards you can use, and what license restrictions apply. The Java ecosystem has several approaches, from low-level programmatic construction to browser-based HTML to PDF conversion. Below are code examples, feature tables, and recommendations for the most popular Java PDF libraries – from programmatic PDF builders to HTML to PDF converters.

Apache PDFBox Java Tutorial: How to Generate PDFs

· 14 min read
Michał Szymanowski
Michał Szymanowski
PDFBolt Co-Founder

Apache PDFBox Java Tutorial: Generate PDFs from HTML with Code Examples

Most Java HTML to PDF libraries rely on browser engines to render content. But if you need full control over layout, fonts, positioning, and structure – especially for invoices, reports, or certificates – Apache PDFBox offers a code-driven alternative. Rather than converting web pages, PDFBox lets you programmatically construct PDF documents from scratch using Java. This guide covers PDFBox's low-level API for creating formatted PDFs – you skip browser dependencies entirely and control exactly how your documents are styled, structured, and generated.

How to Generate PDF from HTML in Java Using Flying Saucer

· 17 min read
Michał Szymanowski
Michał Szymanowski
PDFBolt Co-Founder

Convert HTML to PDF in Java using Flying Saucer and Thymeleaf – step-by-step guide

Looking for a reliable way to convert HTML to PDF in Java – without relying on headless browsers or heavyweight libraries? In this tutorial, you'll learn how to use Flying Saucer (xhtmlrenderer) together with Thymeleaf templates to generate clean, print-ready PDFs directly in your Java application. Flying Saucer is a lightweight, pure Java library that renders XHTML and CSS into PDF format – no external rendering engines required. It works well for reports, invoices, and other dynamic documents where fast, consistent PDF generation matters.

HTML to PDF in Java with Playwright and Thymeleaf

· 16 min read
Michał Szymanowski
Michał Szymanowski
PDFBolt Co-Founder

HTML to PDF with Playwright in Java

Need to convert HTML to PDF in your Java project? This tutorial shows you how to use Playwright for Java together with Thymeleaf templates to generate clean, well-formatted PDFs. We'll build an invoice generator that renders HTML to PDF using a headless Chromium browser, with full CSS and JavaScript support. The code examples are ready to copy and adapt for your own HTML to PDF generation in Java.

OpenPDF in Java: How to Generate Professional PDF Documents

· 18 min read
Michał Szymanowski
Michał Szymanowski
PDFBolt Co-Founder

Generate PDFs with OpenPDF in Java

Programmatic PDF generation is a common requirement for Java applications that produce invoices, reports, or contracts. OpenPDF, a lightweight and open-source PDF library derived from iText, provides a free solution for creating these documents in Java. In this step-by-step guide, we'll build a PDF invoice generator using OpenPDF as a practical example you can adapt to your own projects.

Top HTML Template Engines for Dynamic PDF Generation

· 11 min read
Michał Szymanowski
Michał Szymanowski
PDFBolt Co-Founder

HTML to PDF - Template Engines

Building dynamic, data-driven websites means generating HTML from live data. Template engines handle this by combining HTML layouts with variables, loops, and conditionals. This article covers what template engines are, how they work, their benefits, and the most popular options for Node.js, Python, Java, PHP, and Ruby.

Java HTML to PDF with iText and FreeMarker: Complete Guide

· 10 min read
Michał Szymanowski
Michał Szymanowski
PDFBolt Co-Founder

Java HTML to PDF generation with iText library - certificate example

Need to convert HTML to PDF in Java? iText paired with FreeMarker is one of the most popular approaches to Java PDF generation. This tutorial walks through a complete example – building a certificate generator that turns an HTML template into a finished PDF, with all the code you need to get started.