List of the Top 25 Free PDF Compressors in 2025

SwifDoo PDF is a versatile tool for Windows that serves as a comprehensive PDF maker, reader, editor, and converter. It allows users to effortlessly create, convert, merge, compress, and sign PDF files while offering an intuitive interface that supports the insertion of links or images into documents. Users can convert PDFs into formats such as Microsoft Word, Excel, PowerPoint, JPG, PNG, TIFF, BMP, and even convert CAD files to PDF. The integrated compression feature ensures that files are reduced in size without compromising quality. Additionally, SwifDoo PDF boasts an array of specialized tools for scanning and converting documents, enhancing its functionality. Among its capabilities are PDF reading, annotation (including stamp features), image extraction, editing, compression, merging, splitting, and adding signatures to documents. This all-in-one solution is compatible with various Windows operating systems, including Windows 10, 7, 8, Vista, and XP. The current version available is SwifDoo PDF 2.0.1.9, making it a reliable choice for managing PDF files efficiently.

Pdftools offers robust solutions for handling vast numbers of documents, potentially reaching into the millions. Tailored for sectors that heavily rely on documentation, the Pdftools suite of SDKs aims to enhance the speed, simplicity, and overall ease of your document workflows, reducing stress along the way. Built on reliable SDKs and APIs, Pdftools products integrate effortlessly into your current systems and applications. With the capacity to process thousands of documents each minute, our tools prioritize speed and efficiency. As engineers committed to excellence, we ensure that only the most trustworthy, usable, and well-documented platforms are utilized. While file sizes can be minimized, we guarantee that quality and interactivity remain intact. Additionally, our solutions help ensure that your documents adhere to long-term archiving standards. Comprehensive documentation accompanies every aspect of our products, allowing for a seamless onboarding experience. With Pdftools, you can transform your document management approach and unlock new efficiencies.

Global OEMs, SaaS providers, and enterprise users utilize the Adobe PDF Library to streamline the processes of creating, editing, and managing PDF documents. As an authorized Adobe partner, our SDK is built using the same source code as Acrobat, ensuring top-notch stability, reliability, and quality. Supported programming languages include .NET, .NET Framework, Java, and C/C++, and it is compatible with platforms such as Windows, Linux, and MacOS, with package management facilitated through NuGet and Maven. The library boasts a wide range of capabilities, encompassing annotations, content creation and modification, color management, and various extraction options for text, images, and forms. It also offers features for compression, optimization, and conversion to formats like PDF/A, PDF/X, EPS, PostScript, XPS, and ZUGFeRD, along with robust display and printing options. Moreover, it allows for the import, export, and flattening of both static and dynamic XFA forms, along with AcroForms, and supports a variety of image operations including extraction, rendering, and thumbnail creation. The optimization functionality enhances file size and content, while OCR capabilities enable text addition to documents and images. Additionally, users can convert PDFs to Office formats such as Word, Excel, and PowerPoint, and implement security measures including viewer settings, redactions, password protection, encryption/decryption, and watermarking. Pricing structures are adaptable for OEMs, SaaS solutions, and end-users, based on their specific usage needs. Accelerate your development process and reach the market more swiftly with the Adobe PDF Library; take advantage of the free trial available for download today.

MobiPDF, previously known as PDF Extra, serves as a user-friendly platform for reading and editing PDFs, offering features such as creating, organizing, annotating, filling, signing, converting, and sharing any PDF file. This versatile tool stands out as a cost-effective substitute for Adobe Acrobat Pro, catering to a wide array of user needs. HERE’S WHAT YOU CAN EXPECT WITH MOBIPDF: Multiple Viewing Options: Utilize a focused "Read Mode" for an uninterrupted reading experience. Sophisticated Editing Capabilities: Engage with a PDF editing interface reminiscent of Word. Bidirectional Conversions: Effortlessly transform PDFs into and from formats like Word, Excel, PowerPoint, or images. OCR Integration: Enhance scanned documents by making them searchable. Annotation Features: Utilize tools to highlight, comment, strikethrough, stamp, and more to improve your documents. Simple PDF Management: Easily reorder, compress, split, and merge PDFs as you need. Signing and Security: Incorporate signatures, create and fill out forms, and safeguard your PDFs with passwords, encryption, and digital certificates. Offline Functionality: Continue working on your files without needing an internet connection. Instant Translation: Translate any PDF into over 50 languages with just a click. Overall, MobiPDF combines essential features and user-friendly design, making it a reliable choice for anyone needing comprehensive PDF tools.

PDFCreator is an efficient and multifunctional software that allows users to transform any document that can be printed into a PDF, as well as into other formats like JPG and PNG. This tool is particularly beneficial for managing text files, images, and presentations, facilitating a smoother workflow. Its key features include: Effortlessly converting documents from any application into PDF, JPG, PNG, and other formats. Combining several files into a single PDF document, enhancing organization and accessibility. Establishing automatic saving and creating a fully automated PDF printer, which saves time and minimizes manual tasks. Quick access to commonly used settings with a single click, making repetitive processes faster and more efficient. PDFCreator streamlines the conversion, security, and organization of your PDFs with features such as digital signatures and password protection. Businesses globally rely on PDFCreator for their document conversion and management needs, emphasizing the tool's reliability and effectiveness. We cherish the trust our clients place in us by selecting PDFCreator as their preferred PDF solution. Whether you are an occasional user or a corporate professional, PDFCreator provides a versatile, efficient, and user-friendly approach to all your document requirements. We express our gratitude to all our clients for partnering with us and contributing to our success.

SodaPDF offers a comprehensive software solution designed to help businesses efficiently accomplish their document-related tasks with ease. Whether you need to edit, create, convert, or sign PDFs, this versatile tool caters to all your specific needs. By utilizing the top PDF editor and converter available, you can seamlessly modify your documents. The user-friendly PDF tools streamline any document workflow, enhancing productivity. Notably, our Batch tool stands out as the quickest Microsoft Office-to-PDF converter on the market, enabling you to generate or convert multiple PDFs simultaneously. Additionally, you can effortlessly add page numbers, watermarks, and Bates numbering to numerous files or folders in one go. The E-Sign feature facilitates the remote signing, management, and tracking of electronic signatures, making it an invaluable asset for modern business practices. With OCR Edit, you save valuable time by eliminating the necessity to retype text, as it allows for quick searching, recognition, and modification of images or scanned documents. Furthermore, you can access the complete suite of Soda PDF tools and services from your desktop or any web-enabled device, ensuring flexibility and convenience in managing your documents. This adaptability makes SodaPDF an essential resource for any organization looking to enhance its document efficiency.

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.

CocoDoc serves as a web-based PDF editing tool. With its user-friendly interface, individuals can effortlessly navigate through a range of tools and features, thereby boosting productivity and minimizing time spent on tasks. Additionally, our robust security measures ensure that users can trust their documents remain confidential and protected at all times. This combination of ease of use and strong security makes CocoDoc a preferred choice for many.

PDF Candy provides a variety of free tools for users worldwide to convert, split, merge, rotate, and more when it comes to managing PDF files. Developed by Icecream Apps, this platform is recognized for its reliability and high-quality output in PDF processing. The toolkit harnesses the finest features from their offline software to deliver a unique experience. Users can enjoy all services without any advertisements, ensuring a seamless interaction. With a user-friendly interface, uploading files is a breeze, whether through Dropbox, Google Drive, or simple drag-and-drop functionality. Additionally, users can mark their favorite tools for quicker access, making navigation through the PDF Candy platform even more efficient. Overall, it stands out as a comprehensive solution for all PDF-related tasks.

2pdf.com is a versatile online platform designed for the efficient handling of PDF documents, providing all necessary tools for PDF editing and management in a single, user-friendly interface. Most features are offered free of charge, allowing users to easily execute a range of functions, including converting, merging, splitting, and compressing PDF files. With support for 14 languages, the site draws in thousands of users worldwide on a daily basis. To get started, users can simply drag and drop their PDF files onto the homepage and select the operations they wish to perform. You can easily convert your PDF into different formats, minimize its size, combine several PDFs into one document, or break a single PDF into multiple parts. The services are entirely free and accessible from any web browser, eliminating the need for software installations. Once your files are uploaded, they are quickly deleted post-conversion, with converted documents automatically purged after a 24-hour period. Moreover, the platform prioritizes security, ensuring that all uploaded files remain safe and inaccessible to unauthorized parties, thus safeguarding your documents' confidentiality. Users are guaranteed a smooth and efficient experience when handling their PDF files, free from concerns about security breaches or privacy violations. In essence, 2pdf.com combines utility with user-centric design, making it an invaluable resource for anyone needing to manage PDF documents effectively.

Smallpdf, hailing from Switzerland—a country renowned for its precision in watchmaking, banking excellence, and minimalist design—has garnered multiple accolades for its cutting-edge document management solutions. Established in 2013, the company offers a straightforward, dependable, and secure alternative to cumbersome PDF software options. With a user base exceeding 500 million individuals and 100,000 businesses across 24 languages and every corner of the globe, including the remote regions of Antarctica, Smallpdf has become the go-to choice for PDF management. Its tools are designed to enhance both professional and personal workflows, thereby boosting efficiency and transforming document handling into a hassle-free experience. Users can easily compress, convert, edit, sign, protect, and unlock PDFs in just a few simple steps, making document management more accessible than ever before. This commitment to user-friendliness has solidified Smallpdf's reputation as a beloved resource for anyone dealing with PDF files.

KDAN PDF Reader serves as a comprehensive PDF management solution, allowing users to edit, sign, perform OCR scans, convert, annotate, and fill out forms within PDF documents seamlessly. By incorporating advanced AI capabilities, it enhances the efficiency of your document workflows! Tailored for Mac, iPhone, and iPad users, KDAN PDF Reader is a reliable choice for millions, thanks to its extensive features and user-friendly design. KEY FEATURES EDIT TEXT & PDF • Correct mistakes and typos directly in the PDF - replace, insert, or remove text in documents • Modify images by adding, editing, cropping, and adjusting them within PDFs • Include headers and footers for better organization • Utilize Bates numbering for effective referencing, tracking, and systematic arrangement • Apply stamps or dynamic stamps to convey status, offer feedback, and emphasize key information in the document CONVERT PDF • Offline file conversion - change files without needing an internet connection • Transform PDFs into Office file formats, images, or ePub • Supported formats include docx, xlsx, csv, pptx, rtf, txt, html, jpg, png, BMP, jpg200, pub, and MOBI SIGN & FORMS • Fill out and modify forms as needed • Design fillable forms complete with buttons, checkboxes, and list boxes • Create and apply signatures directly on PDFs • Generate signatures using a trackpad, keyboard, or images EDIT PAGE • Combine and separate PDFs effortlessly • Extract, rearrange, rotate, remove, and crop individual PDF pages • Modify the background color of PDFs for enhanced visibility • Add pages from other documents for comprehensive project management. This makes KDAN PDF Reader not just a tool, but a complete solution for all your PDF needs.

UPDF provides a comprehensive solution for editing, annotating, and managing PDF files across platforms like Windows, Mac, iOS, and Android. This versatile application consolidates all essential tools into a single user-friendly interface, designed to cater to the preferences of both novice and experienced users who appreciate an aesthetically pleasing layout. Among its key features, UPDF allows users to edit PDF documents by adding, deleting, and modifying text properties, including font style, color, and size, while also enabling image manipulation such as cropping, rotating, and extracting. Additionally, users can annotate PDFs by highlighting, underlining, or striking through text, and can easily insert shapes, sticky notes, and text boxes for improved communication. Another significant feature is the ability to manage PDF pages, which includes options to rotate, delete, and extract specific pages as needed. Furthermore, UPDF enhances the reading experience by offering various viewing modes, including both single-page and double-page formats, ensuring flexibility for all types of users. With such a robust set of functionalities, UPDF stands out as an invaluable tool for anyone working with PDF documents.

Systweak PDF Editor offers an extensive range of features and tools designed for the editing and management of PDF files. Users can perform tasks such as redacting text, applying OCR to documents, signing files, splitting and compressing documents, converting several files simultaneously, and managing PDF security by locking or unlocking them, among other modifications. This comprehensive functionality positions it as an adaptable solution for individuals looking to work with PDFs in an efficient manner, catering to both personal and professional needs.

PDF24 offers a variety of easy-to-use online tools for handling PDF files, created by geek software GmbH, a German company that has been in operation since 2006. This platform provides free solutions for numerous PDF-related issues, accessible through both downloadable software and web applications, with the widely-used PDF24 Creator being among them. Though they operate with a small team, the PDF24 staff is passionately dedicated to improving PDF solutions that serve countless users around the world. Their commitment has resulted in the successful introduction of the PDF24 Creator and a range of online tools that have attracted millions of users globally. Additionally, PDF24 includes PDF24 Fax, an online service that allows users to send and receive faxes without the need for a physical fax machine. The ongoing focus on innovation ensures that PDF24 remains a trusted source for all PDF-related needs, continually evolving to meet the demands of its users. Furthermore, the user-friendly interface of PDF24 tools enhances the overall experience, making document management seamless and efficient.

TinyWow provides an extensive selection of complimentary online tools focused on file conversion and PDF management, aimed at helping users tackle various tasks. To prioritize user confidentiality, any files—regardless of whether they have been processed—are deleted from the server within an hour. Users can effortlessly convert PDF documents into JPG images, enabling the download of each page as a separate image file. Likewise, TinyWow allows for the conversion of PDF files into PNG format, with each page also available for individual image downloads. This functionality makes TinyWow a practical and adaptable choice for anyone seeking swift and effective file conversion solutions, catering to diverse needs and preferences. Additionally, the user-friendly interface enhances the overall experience, making it accessible for individuals with varying levels of tech-savviness.

Everything you require for handling PDFs is conveniently located in one spot. You have all the necessary tools for managing PDFs right at your fingertips. Each tool is completely free and user-friendly. In just a few clicks, you can merge, split, compress, convert, rotate, unlock, watermark, and transform PDFs. The intuitive PDF merger allows you to assemble documents in any desired sequence. You can also effortlessly extract individual pages or groups of pages to create new PDF files. Optimize the quality of your PDFs while minimizing the file size for easier sharing. With remarkable precision, convert PDFs into WORD documents and POWERPOINT presentations. Additionally, you can manage sign and certificate PDF documents, request digital signatures, or add your own signatures to your files. This comprehensive suite simplifies all your PDF-related tasks.

As the premier online platform for converting Portable Document Format (PDF) files, we offer a user-friendly website that allows individuals to effortlessly create PDF-compatible documents without requiring any specialized software. By simply uploading a postscript-compatible file to our platform and clicking a link, users can swiftly generate their PDF files. Our mission is to deliver a straightforward solution for both casual and moderate users, enabling them to produce PDF files with ease. We provide free conversion and merging services for various image formats, including JPG and PNG. Furthermore, you can customize your PDF by adjusting border sizes, page dimensions, image alignment, and orientation to suit your preferences. Notably, our service ensures that no watermarks are applied to your documents. Users have the convenience of merging several images into a single PDF file in one simple process. Quality is our top priority; our advanced image converter guarantees that the output maintains the highest possible quality. This capability enables us to optimize file sizes for formats such as PNG, TIFF/TIF, WebP, and JPG/JPEG while safeguarding their original quality. We are dedicated to making the image merging process as seamless as possible, resulting in a single PDF file that is ready for immediate download. Our focus on user satisfaction underscores our commitment to handling your files with utmost care and professionalism, ensuring an exceptional experience every time you use our service. Whether for personal or professional use, we aim to exceed your expectations in PDF file conversion.

PDFgear is a comprehensive PDF tool that enables users to view, edit, convert, sign, annotate, and organize their documents seamlessly across Windows, MacOS, and iOS platforms. With its intuitive and user-friendly interface, PDFgear ensures a smooth experience for reading and editing documents without any distractions. The PDFgear Copilot serves as an advanced personal assistant that surpasses the capabilities of a typical document assistant, utilizing AI technology to help users navigate all features of PDFgear and interact with their PDF files. If you find yourself overwhelmed by the multitude of functions or content within your documents, simply reach out to Copilot for assistance—it's there to answer any questions you might have! Working with PDFs feels effortless and enjoyable with PDFgear, making your tasks as pleasant as a leisurely walk through a beautiful garden. Explore the full potential of your PDF documents effortlessly with this innovative tool!

Presenting a cutting-edge PDF editor tailored for the needs of modern workplaces, simplifying the process of converting and editing documents. This tool allows you to manage all your PDF files efficiently from one centralized platform. To get started, simply open PDF Master and drag your desired PDF into the workspace. You can then utilize the available editing features to add elements like text and images as needed. Once you have made your adjustments, you can review the document and choose to either download it or share it instantly. Our state-of-the-art encryption ensures that your sensitive information remains protected throughout the entire conversion process. You can trust that we prioritize your privacy with our robust security protocols. There's no necessity for software installations or browser extensions; our service operates smoothly across desktops, laptops, tablets, and smartphones, compatible with leading operating systems such as Windows, macOS, iOS, and Android. Effortlessly convert files whenever and wherever you are, using only your web browser, without requiring any specialized technical knowledge. Simply upload or drag and drop your file onto the platform, select the format you need, edit to your satisfaction, and we take care of the rest seamlessly. Embrace the ease and security that our user-friendly PDF editing solution offers, and elevate your document management experience today. Moreover, our commitment to continuous improvement ensures that we are always adding features that enhance functionality and user experience.

QuicklyPDF emerged from a straightforward yet urgent necessity: to provide accessible, effective, and privacy-conscious PDF tools for all. In the course of my personal and professional endeavors, I frequently encountered frustration with PDF services that were overly complex, costly, and invasive regarding user privacy. Many of these services demanded subscriptions, intrusive registrations, or simply did not offer the versatility necessary for various document requirements. I envisioned a platform that could deliver top-notch PDF tools while prioritizing user privacy and accessibility. This vision led to the development of QuicklyPDF—a free, browser-based service where users can seamlessly and securely perform tasks such as merging, compressing, and converting files. What distinguishes QuicklyPDF is its unwavering dedication to privacy. Files are systematically erased from our servers within an hour, and numerous functions can be executed directly within the browser, eliminating the need for uploads. This methodology not only safeguards user data but also enhances the platform's speed and reliability. QuicklyPDF represents both a personal passion project and a response to the increasing need for straightforward, affordable, and secure document management solutions. It is a resource I wish had been available to me much earlier, and I take immense pride in offering it to users around the globe. Ultimately, my hope is that QuicklyPDF can empower users to handle their PDF needs with confidence and ease.

PDF4All is a web-based platform that offers a wide array of features for managing PDFs and images, enabling users to effortlessly optimize, convert, merge, and edit their documents. It allows for the compression of both PDF and image files while preserving their quality, and can convert various formats such as Word, PowerPoint, and Excel into PDFs, as well as the opposite process. Moreover, users can rotate, split, and crop PDF files, and they have the ability to extract images from their documents. This service simplifies document management, ensuring that it is accessible and user-friendly for everyone, regardless of their technical expertise. By providing these straightforward tools, PDF4All empowers individuals to take charge of their file management with confidence and ease, ultimately enhancing productivity in their everyday tasks.

PDFelement serves as an all-in-one PDF solution driven by artificial intelligence, providing a quick, intelligent, cost-effective, and user-friendly approach to handling PDF documents on desktop, mobile, and web platforms. It ensures an exceptional user experience, making it a strong alternative to Adobe® Acrobat® that suits both individuals and small businesses perfectly. The company is dedicated to leading the PDF technology landscape by continuously innovating and enhancing its product to adapt to the changing needs of its users. Key features that set it apart include: Intelligent: It offers the most advanced method for managing PDF forms and documents, utilizing AI capabilities. Versatile: The desktop application is accessible through an annual or perpetual license fee, providing flexibility to users. Cost-effective: It provides features that rival those of Adobe Acrobat DC while being available at a significantly reduced price, offering savings of up to 50%. Extremely Fast: The software is designed to be lightweight, ensuring that even beginners enjoy a smoother user experience with a minimal learning curve. In addition, PDFelement’s commitment to user satisfaction is evident in its regular updates and responsive customer support.

CoolNew PDF is a versatile software designed to handle various aspects of PDF document management. It offers a range of functionalities such as editing, converting, splitting, merging, annotating, and securing your files, providing just a glimpse of its capabilities. The application's sleek interface is not only visually appealing but also user-friendly, allowing for easy navigation. By utilizing the ribbon menu, users can explore different categories of features effortlessly. Each section of the ribbon is accompanied by its own dedicated toolbar, offering tools tailored to the specific tasks listed. CoolNew PDF supports the export of most Office documents to and from PDF formats, and this capability extends to images as well. While merging, splitting, and extracting pages and images are fundamental features for any PDF management tool, they remain crucial for effective document handling. Additionally, users can effortlessly add watermarks and encrypt files for enhanced security, and the integrated OCR tool simplifies text extraction from images, ultimately saving valuable time. The software stands out as a comprehensive solution for all PDF-related needs.

FacePdf is a renowned software company that excels in PDF and digital document technologies, allowing us to deliver exceptional expertise, value, and quality to our clients. Our free PDF Converter supports a variety of formats, including Word, Excel, PNG, TIFF, and JPEG, with no restrictions on usage. Key features available to users include: - Merging PDF into Word PDF - E-signing, editing, and compressing PDFs - Adding pages to a PDF - Converting Excel files to PDF - Deleting pages from a PDF FacePdf was developed to meet the diverse needs of users, making complex software a thing of the past while introducing straightforward PDF tools. With just a few clicks, you can seamlessly edit, merge, convert, compress, sign, and protect your documents. Our Online PDF and Document Tools are accessible from anywhere, empowering users to manage their files effortlessly. Experience the simplicity and efficiency of FacePdf today!