List of the Top 6 PDF Generators for Java in 2025

XML, DITA, and HTML can all be utilized to produce top-notch PDF and printed materials. You have the flexibility to style your content through CSS or XSL-FO. PDF documents can be generated in any language supported by Unicode. The software maintains compliance with W3C standards for XSL–FO, CSS, MathML, and SVG. AH Formatter stands out as the sole automated PDF publishing tool capable of providing these features. It has gained a strong reputation in the documentation sector for its XSL-FO formatting capabilities, which are specifically designed for XML and DITA. Over time, AH Formatter has been refined to include the capability to convert HTML into well-structured documents by utilizing CSS styles. This evolution has expanded users' choices for PDF creation, allowing them to format their documents with either XSL-FO or CSS. As one of the most effective tools for converting XML/HTML to PDF, AH Formatter can handle documents of varying sizes, ranging from extensive publications and comprehensive reports to thousands of invoices and customized one-to-one documents. Its versatility makes it an invaluable asset for professionals in document publishing.

Leverage our HTML to PDF API to effortlessly create PDFs from web pages or HTML content. Enable your users to convert web pages into PDFs with a single click! Seamlessly transform entire websites into PDF documents! Join a vast community of pleased customers who have been producing high-quality PDFs since 2008! You can quickly convert any URL or raw HTML into a stunning PDF file. Our REST API works with any programming language and offers a range of features, such as customizable layouts, headers, footers, watermarks, encryption, and more. Simply add a "save as PDF" link or button to your web pages, allowing your visitors to easily download content as a PDF. You have the option to customize various layout settings and tailor headers and footers to your needs. Preserve your entire website as a PDF for copyright purposes or other requirements. Just enter the URL, and we will create a comprehensive PDF file that includes all the pages of the site. While you take a moment to relax with a cup of coffee, we’ll manage the conversion process and send you an email notification once it’s finished, ensuring a hassle-free experience throughout! Additionally, this service empowers businesses to distribute valuable content in a professional format, enhancing engagement and accessibility.

Establishing and overseeing a PDF backend can be quite a tedious and time-consuming endeavor. However, with Paperplane, you can seamlessly incorporate PDF functionalities into your application, allowing you to concentrate on what truly matters. For users managing batch processes, Paperplane facilitates the simultaneous creation of up to 20 PDFs, providing the flexibility to streamline your workflow and increase document production efficiency. Its asynchronous API empowers you to initiate PDF jobs without the need for constant oversight of extended processes. Moreover, webhooks will alert you to any complications that may occur during the PDF generation process. If you're looking for a way to create PDFs from your single-page application, you can be confident that if your website operates smoothly in Chrome, it will also function flawlessly with Paperplane. You even have the option to postpone PDF generation until a specific element is visible on the page, ensuring that all your content is completely loaded before commencing the process. This added flexibility not only enhances user experience but also boosts reliability, establishing Paperplane as an essential resource for developers. Additionally, the user-friendly interface and comprehensive documentation make it easy for developers to get started with Paperplane right away.

Converting HTML files into PDFs involves various considerations to ensure top-notch print quality. Whether you are changing a webpage or applying Database Publishing techniques, there are effective ways to transform even complex HTML into PDF format. PDFreactor stands out as a powerful solution for HTML to PDF conversion, featuring a vast array of functionalities that exceed those of many other options, thereby enhancing your overall conversion experience. It allows for seamless conversion from HTML to PDF and provides excellent support for HTML5, CSS3, and JavaScript. This software comes equipped with APIs that are compatible with numerous programming languages, such as JavaScript, Java, PHP, .NET, Python, Ruby, Perl, Node.js, as well as both SOAP and REST protocols, plus an option for a Docker Image. Furthermore, it offers a complimentary personal license, making PDFreactor a superb choice for web applications like Database Publishing, Web-to-Print, PIM, DMS, MDM, DAM, WCMS, and VDP. Typically utilized for server-side HTML to PDF conversions, it can manage everything from documents driven by dynamic data—like reports, invoices, and forms—to producing sophisticated, high-quality PDFs for a variety of applications. By leveraging PDFreactor, users can effectively meet diverse printing requirements while upholding exceptional quality standards. This versatility makes it not only a practical tool but also a valuable asset for professionals looking to streamline their document creation processes.

PDF Constructor employs an XML-based grammar that fuses elements from XHTML, CSS, and SVG to produce both single and multi-page PDF documents, accommodating a wide array of pre-existing and dynamically generated raster, vector, and textual elements. The application allows for the creation of print-ready PDFs that feature support for CMYK and spot colors, while also enabling precise control over bleed and trim specifications. It supports various font formats, including Type 1, TrueType, and OpenType, ensuring that font embedding is consistently executed, with an optional feature for subsetting. Additionally, it allows for the creation of documents optimized for web use, complete with bookmarks, hyperlinks, interactive features, and JavaScript capabilities, as well as the ability to dynamically generate comprehensive Acrobat Forms. Users can seamlessly integrate JPEG and TIFF images into their layouts, with options for adjusting colorspace and resolution, along with transformations to facilitate proper alignment. Furthermore, SVG graphics can be either included directly or referenced externally, and users can specify templates for new content by selecting individual pages or entire PDF files. The tool also offers the ability to apply paragraph and character styles based on CSS2, which enhances the flow and design of content, making it not only functional but aesthetically pleasing. This multi-faceted software significantly simplifies the PDF generation workflow, establishing itself as an essential resource for both designers and developers in their projects. With its extensive features, PDF Constructor caters to a diverse range of user needs, ensuring efficiency and creativity in document creation.

The PDF Generator API simplifies the process of creating PDF documents by utilizing predefined templates in conjunction with JSON data. This user-friendly service allows individuals to generate PDFs and manage their document templates through an easy-to-use browser-based drag-and-drop editor, ultimately reducing both development and support costs. Our system enables the creation of unique workspaces for each user, which aids in the effective storage and management of their templates. A new workspace is automatically generated with each API request that includes a different workspace identifier. Additionally, users are empowered to write mathematical and logical expressions for customizing the values displayed in various elements. The API accommodates a broad spectrum of operators, such as ternary, arithmetic, bitwise, and comparison operators, alongside functions for summing, concatenating, and iterating over arrays. Users can also leverage components like Text, Table, and Barcode for precise formatting of numerical and date information. Moreover, it provides capabilities for grouping, filtering, and sorting lists and tables without requiring any modifications to the dataset in the software application, which significantly boosts efficiency and enhances the user experience. This comprehensive API guarantees a fluid and dynamic document management process for every participant involved, making it an invaluable tool for diverse applications.