List of the Top PDF Converters for JavaScript in 2026

Apryse (formerly PDFTron) transforms how organizations manage documents. Built for both server and web applications, Apryse empowers businesses and developers to securely handle the entire document lifecycle — from creation and collaboration to compliance and archiving — without relying on third‑party services. With Apryse, you can: Run at enterprise scale on your own infrastructure, ensuring privacy, compliance, and maximum control. Deliver modern, in‑browser document experiences with fast, accessible viewing, editing, and collaboration tools. Integrate seamlessly across platforms, supporting PDF, Microsoft Office, CAD, and many other file types. Streamline workflows and reduce costs with technology trusted by leading enterprises worldwide. Apryse makes document workflows smarter, faster, and more secure — so teams can focus less on manual processes and more on meaningful work.

Nutrient SDK integrates seamless PDF conversion capabilities into your applications and workflows, ensuring the same document is available in various formats while maintaining its integrity—without requiring separate libraries for each format or the need for Microsoft Office. It caters to developers, backend engineers, and document pipeline designers, enabling them to effortlessly convert contracts and reports into PDFs, transform PDFs back into editable Office formats, change images into PDFs, and save documents as PDF/A for archiving purposes. The SDK is equipped to handle conversions from Word, Excel, and PowerPoint to PDFs, as well as vice versa, while keeping the original layout, fonts, and tables intact. The Web SDK facilitates client-side conversion of Office documents, TIFF, JPG, and PNG files directly in the browser, eliminating the need for document uploads. For self-hosted, server-side batch conversions, the Document Engine provides a robust solution. Additionally, the .NET SDK supports the conversion of over 100 file formats to PDF, including HTML, emails, and CAD files. The PDF/A output produced is specifically designed to meet veraPDF validation standards for long-term document preservation.

The pdfRest API Toolkit was crafted by developers for developers, enabling swift integration of PDF workflows into business applications with ease and efficiency. This toolkit encompasses a comprehensive suite of PDF processing tools created by digital document specialists who possess decades of expertise to simplify your tasks: it offers conversions such as PDF to Word, PDF to Excel, and PDF to PowerPoint, along with functionalities like adding to PDFs, text extraction, querying PDFs, converting to various formats, and compressing PDFs. Additionally, it provides features for flattening forms, transparencies, annotations, and layers, as well as merging, splitting, encrypting, decrypting, and watermarking PDFs, along with form data management, OCR capabilities, and file uploads and zipping. Users will find extensive documentation featuring intuitive endpoints and parameters, along with sample code in .NET, JavaScript, Python, PHP, and cURL for every endpoint to facilitate smooth operation. Powered by the renowned Adobe® PDF Library™, it allows users to begin without any financial commitment and offers competitive pricing suitable for projects of any scale. The design of pdfRest emphasizes flexibility, allowing APIs to be accessed from any programming language capable of making API requests, making it a versatile choice for developers aiming to simplify their PDF workflow. Start your journey with your first API call today and experience the ease of PDF management firsthand.

BuildVu offers an advanced solution for converting PDFs into HTML and SVG formats, empowering you with enhanced control and functionality for your web applications. -Content Optimization: The tool effectively processes PDFs, ensuring reduced file sizes and rapid loading times in web browsers. -Metadata Access: It allows you to retrieve important PDF information in JSON format, including metadata, lists of words, outlines (bookmarks), and annotations. -Thumbnail Generation: Create high-resolution thumbnails of pages with dimensions that you can customize to suit your needs. -Support for Annotations: A variety of annotation types such as links, popups, sound/video, text highlights, and underlining are available in a user-friendly JSON format. -Text Extraction: The search.json feature lets you extract all the text from the document along with the accompanying HTML content. -Font Compatibility: It provides font conversion to ensure that embedded fonts are compatible across different web browsers. -Integration with Office Formats: When paired with LibreOffice, BuildVu enables smooth transitions from various Office file types like Word, PowerPoint, and Excel, streamlining the conversion process. This comprehensive tool not only enhances your web application’s capabilities but also simplifies the management of PDF content.

FormVu offers a comprehensive solution for transforming HTML, JavaScript, and CSS content compatible with popular browsers like Chrome, Edge, Firefox, and Safari across various operating systems, including Linux, MacOS, and Windows, as well as mobile devices running Android or iOS. The converted PDF forms seamlessly display in the browser, mirroring their original appearance in Acrobat with accurate layouts, formatting, and styles. Fonts embedded within the documents are appropriately converted, ensuring a consistent visual experience. Supporting both AcroForms and XFA Forms, FormVu effectively transforms all forms into HTML5, CSS, and JavaScript while maintaining their original style and layout. It also converts JavaScript to function within the browser context, safeguarding validation and calculations present in the forms, and even accommodates XFA FormCalc. Designed for user-friendliness, the FormVu converter eliminates the need for a dedicated server or complex infrastructure, generating clean, standalone HTML content. Furthermore, it integrates smoothly into existing PDF workflows, allowing users to edit, update, and save data back to the original PDF or forward it to the server, enhancing overall efficiency in document management. This capability makes FormVu a versatile tool for anyone looking to streamline their PDF form processes.

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.

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.