Best Free PDF Compressors
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Compare the Top Free PDF Compressors as of November 2025
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What are Free PDF Compressors?
PDF compressors reduce the file size of PDF documents while preserving the content and formatting. These tools optimize the PDF by removing unnecessary data, compressing images, and adjusting file structures to decrease storage requirements and improve file transfer speeds. PDF compressors are useful for businesses and individuals who need to share large PDF files via email or upload them to websites, ensuring they remain accessible and easy to handle without sacrificing quality. Many PDF compression tools offer batch processing, allowing users to compress multiple files at once, saving time and effort. Compare and read user reviews of the best Free PDF Compressors currently available using the table below. This list is updated regularly.
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1
MobiPDF (formerly PDF Extra)
MobiSystems
MobiPDF (formerly PDF Extra) is an intuitive and powerful PDF editor and reader designed for today’s modern user - the cost-efficient alternative to Adobe Acrobat Pro you’ve been looking for. FEATURES OVERVIEW: PDF Viewer and Reader: Switch between page views or use "Read Mode" for distraction-free reading. Create and Edit PDFs: Modify text and images or start with a blank PDF. Convert to Office Formats: Easily turn PDFs into Word, Excel, PowerPoint, and image files. Leverage OCR: Transform scanned documents into searchable PDFs. Organize PDFs: Combine, split, reorder, and compress documents. Markup and Comment: Highlight, annotate, and add bookmarks or stamps. Fill PDFs: Seamlessly fill forms or create ones from scratch. Sign PDFs: Sign your documents anywhere—no ink required! Secure Your Work: Protect files with passwords, digital signatures, and 256-bit encryption. Offline Mode: Full functionality without internet access. Translate PDFsStarting Price: $49.99 -
2
PDFCreator
pdfforge
PDFCreator simplifies converting printable documents into high-quality PDFs and other formats like JPG, PNG, and TIF. Easily merge multiple files into one PDF and automate saving with the PDF printer feature. Customizable profiles allow quick access to frequently used settings. Whether for personal or business use, PDFCreator makes PDF conversion seamless and efficient. Trusted by businesses worldwide, including banks, financial institutions, insurance companies, and healthcare providers, PDFCreator offers a free edition and three advanced business editions. PDFCreator Professional is ideal for standalone workstations, while PDFCreator Terminal Server is designed for Windows Servers with Remote Desktop Services. New in PDFCreator 6.0.0: features include document previews, a Delete Token for page removal, SharePoint integration, and enhanced error feedback.Starting Price: $0 -
3
pdfRest
Datalogics Inc.
pdfRest API Toolkit was made by developers, for developers. Rapidly integrate PDF workflows with any business application, simply and seamlessly. pdfRest API Toolkit includes all of the PDF processing tools you'll need, to make your job easy. PDF to Word, PDF to Excel, PDF to PowerPoint, Add to PDF, Query PDF, Extract Text, Convert to PDF, PDF to Images, Convert to PDF/A, Convert to PDF/X, Compress PDF, Linearize PDF, Flatten Forms, Flatten Transparencies, Flatten Annotations, Flatten Layers, Merge PDFs, Split PDF, Encrypt PDF, Decrypt PDF, Restrict PDF, Watermark PDF, Import Form Data, Export Form Data, Convert PDF Colors, OCR PDF, API Polling, Upload Files, Zip Files. Get up and running fast with the pdfRest Postman Collection or start from functional sample code in .NET, JavaScript, Python, PHP, and cURL from the pdfRest GitHub repository. Gold-standard processing powered by Adobe® PDF Library™ ensures the highest quality results. Free to get started with no commitment.Starting Price: $0 per month -
4
SODA PDF
Avanquest
Soda PDF is the software solution that helps your business quickly achieve any document goal with ease. Edit, create, convert, merge, split, sign, or secure PDFs to your needs. Modify documents using the best PDF editor and PDF converter. Our easy-to-use PDF tools are made to streamline any document workflow with efficient results. With the fastest Microsoft Office to PDF converter on the market, our Batch tool helps you create or convert multiple PDFs at once, along with the ability to add page numbers, watermarks, Bates numbering & secure permissions to multiple files or folders in seconds. Keep a safe distance between people and paper by signing, managing & tracking electronic signatures remotely using our efficient E-Sign feature. Save time & avoid retyping with OCR Edit to quickly search, recognize & modify text contained within any scanned document or image file. Access Soda PDF’s entire suite of tools & services directly from your desktop, or from any device with a web browser. -
5
Pdftools
PDF Tools
Whether you have thousands of documents or millions, Pdftools has the products and services to help make processing a breeze. Designed for document-heavy industries, Pdftools’ suite of SDKs and APIs are here to make your document workflows easier, faster, and stress-free. Built on SDKs and APIs, the Pdftools products integrate seamlessly into your existing (or new) systems and applications. Process thousands of documents every minute. Our tools are precision-engineered to be efficient and run at blazing speeds. We’re engineers at heart, so we’re only satisfied with the most reliable, orderly, and usable, and well-documented platforms. Shrink file sizes down, but keep the quality and interactivity. Your documents will always be compliant for long-term archiving. We’ve obsessed over every detail in our products, and documented everything so it’s easy to get started.Starting Price: $0/month/user -
6
CocoDoc
CocoDoc
CocoDoc is a cutting-edge online PDF editor. Our interactive interface makes it easier for users to utilize the different tools and features available, therefore increasing efficiency and chopping off time. With our secure gateways, users can enjoy the peace of mind that their documents are safe and private.Starting Price: $9/month -
7
SwifDoo PDF
SwifDoo Software
SwifDoo PDF is a comprehensive, all-in-one PDF tool that offers features that most users often require. This free software comes with a user-friendly interface where most of its main features layout and can be easily recognized and accessed on the main screen of the program. SwifDoo PDF - the most functional PDF editor that can be successfully used by novice users and experienced professionals. Beginners will enjoy the simplicity and certain intuitiveness of the interface, as well as the ability to edit PDF files without much effort. SwifDoo PDF has a number of special features for scanning copy convert. Besides many convert features. PDF Reader PDF Annotation (Including Stamp) Picture/image Extraction (only need copy and paste from PDF) PDF Edit PDF Compress PDF Merge PDF Split PDF Signature System Requirements: Windows 10/7/8/vista/XP Edition: SwifDoo PDF 2.0.0.6Starting Price: $0 -
8
2PDF
2PDF
2pdf.com is an online platform for working with PDF files. We have combined all the most popular tools for working with PDF files on one platform. You can use most of them for free. On one platform, we have collected all the tools you need: conversions, merging, splitting, compressing and much more. Today it has 14 language versions and thousands of users from all over the world use it every day. Drag your PDF file onto the page and select the actions you want to perform with it. You can convert your PDF file to other formats, reduce the size of the PDF, merge several PDF files into one, or split into several separate files. All services are free and work online, you do not need to install anything on your computer. Your downloaded files will be deleted immediately after conversion, and converted files will be deleted after 24 hours. All files are protected from access by third parties, no one except you can access them.Starting Price: Free -
9
Smallpdf
Smallpdf
Made in Switzerland, the land of watches, banks, and clean design, Smallpdf is an award-winning company that offers a suite of clever document management tools for everyone—for work, for home, for life. Founded in 2013, Smallpdf provides a simple, secure, and reliable answer to heavy, awkward PDF software. By removing unnecessary features and adding a deep focus on user experience, Smallpdf has become the most-loved and most-trusted PDF software on the planet, serving over 500 million users, 100,000 different companies, in 24 different languages, and in every country in the world—even Antarctica! Smallpdf integrates seamlessly with professional and personal tasks, boosting productivity and simplifying the way people manage their documents, with tools to compress, convert, edit, sign, protect, and unlock PDF documents in just a few easy steps.Starting Price: $7/month/user -
10
UPDF
Superace Software Technology Co., Ltd.
UPDF supports editing, annotating, and managing PDF seamlessly on for Windows, Mac, iOS and Android. You can get every tool you need to edit, annotate, and organize your PDF files in one premiere all-rounder smart application. It is explicitly designed to meet the desire of most users for a stunning yet very comprehensible interface that is not just only for beginners. Key Features: 1. Edit PDF Document - You can add or delete texts as well as edit the text's properties and formats such as its font style, font color, and size. - You can also crop, rotate, replace, extract or delete images. 2. Annotate PDF - Easily highlight, underline, and strike out those parts. You can also add shapes, sticky notes and text boxes for a quicker and easier means of adding texts. 3. PDF Page Management - Rotate, delete, extract and rearrange PDF pages as you need. 4. View and Navigate PDF Files - Flexible reading mode such as single page mode or double-page mode.Starting Price: Free -
11
PDF24
geek software
Free and easy to use online PDF tools. PDF24 is a project of geek software GmbH, a German company that was founded in 2006. PDF24 offers free and easy to use PDF solutions for many PDF problems, online and as software for download. Solutions include the well-known PDF24 Creator and PDF24 Online Tools. PDF24 consists of a small agile team dedicated to the development and improvement of PDF solutions. The PDF24 team is small, but passionate about PDF, which likes to develop solutions that help many people around the world with their PDF problems. Within a few years, we have managed to establish the PDF24 Creator and PDF24 Online Tools, which are used by millions of people around the world. PDF24 also offers PDF24 Fax, which is an online fax service for people who want to send and receive faxes online, without a fax machine. -
12
iLovePDF
iLovePDF
Every tool you need to work with PDFs in one place. Every tool you need to use PDFs, at your fingertips. All are 100% FREE and easy to use! Merge, split, compress, convert, rotate, unlock and watermark PDFs with just a few clicks. Combine PDFs in the order you want with the easiest PDF merger available. Separate one page or a whole set for easy conversion into independent PDF files. Reduce file size while optimizing for maximal PDF quality. Convert your PDF to WORD documents with incredible accuracy. Convert your PDFs to POWERPOINT. Sign and certificate PDF documents. Request for digital signatures or sign your own documents.Starting Price: $7 per month -
13
XConvert
XConvert
We are the web's premier online converter of Portable Document Format (PDF) files. Our site allows you to make a PDF-compatible file without loading any special software. All it takes to generate a PDF-compatible file is to upload a postscript-compatible file to our website and then click on the resulting link. Our aim is to make it simple for light and moderate users to generate PDF files. Convert and merge JPG, PNG, and other images to PDF online for free. Change border size, page size, image alignment, and orientation to fit your preferences. No watermark is added. Combine or merge a large number of photos to PDF document(s) at once. We don't compromise quality for anything. Our advanced image converter detects the best quality for your output files. This feature enables us to keep the best quality while reducing PNG, TIFF/TIF, WebP, and JPG/JPEG image file size. We do our best to separate all details need to merge Image files so you can just download single PDF file.Starting Price: $4.99 per month -
14
PDFgear
PDFgear
PDFgear is an all-in-one PDF solution that helps users view, edit, protect, convert, sign, annotate, organize, OCR, Copilot, organize PDF files, and make more possibilities on Windows, MacOS, iOS, and iPadOS. PDFgear offers all expected functions in its clean and straightforward interface so users could enjoy their document reading and editing experience without disturbance. PDFgear Copilot provides more possibilities as a personal document assistant. As it's powered by AI, users could easily manipulate all PDFgear functions and chat with PDFs by asking PDFgear Copilot. Get lost in various functions and comprehensive document content? Don't worry! Just ask Copilot! It will cover everything. With PDFgear and Copilot in it, processing PDF is like a walk in the garden.Starting Price: Free -
15
QuicklyPDF
QuicklyPDF
QuicklyPDF is a free, privacy-first online platform designed to handle a wide range of PDF tasks effortlessly. Whether you need to merge multiple PDFs, split large files, compress PDFs to reduce file size, or convert documents between PDF and various formats like Word, Excel, and images, QuicklyPDF offers all these features in a user-friendly, no-frills interface. Unlike many other tools, QuicklyPDF prioritizes user privacy. Files uploaded to the server are automatically deleted within one hour to ensure your data remains secure. Additionally, certain features such as PDF merging, splitting, and image-to-PDF conversion are processed locally in your browser using WebAssembly (WASM), meaning your files never leave your device for those operations. QuicklyPDF is entirely free to use—there are no hidden charges, no subscriptions, and no sign-ups required. You can handle unlimited PDF tasks without worrying about daily limits or watermarks. The platform is accessible from all devices.Starting Price: $0 -
16
PDF4All
PDF4All
PDF4All is an online platform offering a wide array of PDF and image tools designed to optimize, convert, merge, and edit files effortlessly. It enables users to compress PDFs and images without losing quality, convert various file formats like Word, PowerPoint, and Excel to PDF, and vice versa. The platform also offers features like rotating, splitting, and cropping PDFs, as well as extracting images from PDF files. PDF4All simplifies the document management process by making it accessible to everyone, regardless of their technical expertise, with an easy-to-use, no-cost solution. -
17
KDAN PDF
Kdan Mobile Software
KDAN PDF (formerly PDF Reader) is your all-in-one PDF solution. Edit, sign, OCR scan, convert, annotate, and fill forms in PDF documents. With innovative AI features, speed up your document workflow! Designed for Mac, iPhone, and iPad, KDAN PDF is trusted by millions for its comprehensive features and efficiency. AI FEATURES: • Analyze and extract key information or tables from a PDF, then convert the data into spreadsheets for further analysis or visualization. • Chat with PDF and get document analysis, advice, new ideas, or content summary • Text redaction - automatically identify and block sensitive information in a documentStarting Price: $59.99/year (billed annually) -
18
TinyWow
TinyWow
TinyWow provides free online conversion, pdf, and other handy tools to help you solve problems of all types. All files both processed and unprocessed are deleted after 1 hour. Convert PDF to JPG and download each page as an image. Convert PDF to PNG and download each page as an image.Starting Price: $5.99 per month -
19
PDFelement
Wondershare
PDFelement is a one-stop PDF solution powered by AI. Fast, smart, affordable, and easy way to manage (.pdf) documents across desktop, mobile, and web. It provides a great user experience and is an excellent alternative to Adobe® Acrobat®, making it perfect for individuals and small businesses. The mission is to stay at the forefront of PDF technology, constantly innovating and improving our product to meet the evolving needs of our users. Support service: Knowledgeable representatives available through instant live chat and email response within 24 hours. Money-back guarantee: A 30-day money-back guarantee. Top Features: AI tools, esign, edit, convert, scan&OCR, create, organize, share&protect, build&fill forms, annotate.Starting Price: $79.99USD/year/user -
20
Perfect PDF
soft Xpansion
Perfect PDF® 12 is a versatile and powerful family of software tools for processing PDF and PDF/A files. The user interface is modern and is based on the design of Microsoft Office. You can purchase complete editions (Office, Student, Premium; Perfect E-Rechnung, and Business Edition) or just selected functions, depending on your individual requirements and needs. And if you need additional functions later, upgrades or the purchase of additional functions are easily possible. A free trial version is available after you have created a free account on the soft Xpansion web site. Main functionality: - Create & edit PDF files - Optimize PDF documents and files - Convert PDFs to archivable PDF/A, versions 1, 2, 3, 4 - Sign PDFs with PAdES and multiple signatures, apply document timestamps and certifications - Create PDFs from multiple linked HTML files (or web pages) - E-Invoices (ZUGFeRD/Factur-X and XRechnung) - Create PDFs from eBooks (EPUB, FB2) - Compare PDF documentsStarting Price: €1.25 per month -
21
FacePdf
FacePdf
FacePdf is a globally recognized and renowned software firm specializing in PDF and other digital document technologies. Our concentration and specialization enable us to provide our customers with expertise, value, and quality. Our PDF Converter lets users transform various formats like Word, Excel, PNG, TIFF, and JPEG into PDFs—for free, with no usage limits. Here are some key features for users: PDF to Word Merge PDF E-Sign PDF Edit PDF Compress PDF Add Pages to PDF Excel to PDF Delete PDF Pages FacePdf was built to meet the needs of everyone. Forget about complicated software and say hello to easy-to-use PDF tools. Edit, merge, convert, compress, sign, and secure your documents in just a few clicks. We provide Online PDF and Document Tools services that can be used Worldwide.Starting Price: $4 per month -
22
Lua
Lua PDF
Lua is a free online PDF converter. No download required! Convert PDF to Word DOC, Excel, JPG, PNG, PPT and HTML files, or convert to PDF on the cloud. Follow these steps to combine/merge PDF online: 1. Click Choose PDF Files and select the PDF files you want to merge. 2. PDF Combiner will start the merger job immediately. 3. Wait for the tool to finish the task. 4. Your PDF files will be merged into a single document.Starting Price: Free -
23
GorillaPDF
GorillaPDF
GorillaPDF is a web application for converting different files to PDF without the need to download, install or create any accounts. It supports the PDF community with reliable, secure, and free PDF converter tools including JPG to PDF, PNG to PDF, Word to PDF, Excel to PDF, Text to PDF, and PPT to PDF. Other useful tools for daily usage are the password protect PDF and unlock PDF tool as well as Compress PDF. GorillaPDF converter is all-free.Starting Price: $0 -
24
PDF Editor
PULKITSOFT LLP
World's most comprehensive, powerful, process-based and lighting fast PDF reader, editor and batch processor. PDF editing with 60+ features rich tools and function like pdf Imposition, Masking Tape/Hide Content, Reverse Pages, Resize Page, Scale Page, Booklet, N-up Pages, Page Repeat, Merge, Split, Extract, Rotate, Duplicate, Move, Compression, Batch Processing, Hot Folder, Advanced Printing, Replace Page, Insert Page, Delete Page, Add Link, Attachment/Add Files into PDF, Replace Text, Hide Pages, Crop Page, Page Box, Add Text, Add Image, Add Bookmarks, Remove Bookmark, Export Bookmark, Create Form, Delete Form, Flatten Form, Extract Text, Extract Images, Export To Word, Export To Excel, Export To PowerPoint, Advanced and Multiple Barcodes, Password Protection, Remove Password, Bates Numbering, Watermark/Background, Sign PDF files (Digital Signature), Add Vector Graphics, Convert To Grayscale, Convert PDFA to PDF, Convert PDF to PDFA, Convert PDF to TeX, Convert PDF to EPUB, and more.Starting Price: $69 -
25
FPDF
FPDF
FPDF is a solution written in PHP that allows you to generate PDF documents directly from PHP, so you can use the PDFlib library. The F of FPDF means free, so you can use it for any purpose and modify it to your liking to satisfy your needs. FPDF does not need any extension for PHP (except Zlib to enable compression and GD for GIF support) and works with PHP5 (≥ 5.1), PHP7 and PHP8. The tutorials will allow you to quickly access FPDF. FPDF generates documents in many other languages apart from the Western European ones, like Central, Cyrillic, Greek and Baltic, if they have TrueType or Type1 sources with the set of appropriate characters. UTF-8 is also available. The speed of generation of a document is less than that of PDFlib. Without the resentment, however, is very reasonable and is adequate for the majority of cases, unless its documents are specifically compiled or extended.Starting Price: Free -
26
Scanner Go
AppyHigh
Cloud-based document management and conversion tool that helps businesses scan, edit, and share PDFs and JPGs. Scanner Go - a free PDF scanner application. We makes it easy to convert and edit all your PDF files. Now scan, convert, edit & share documents hassle-free. With a focus on simplicity, security and reliability Scanner Go has become one of the most popular PDF software out there with over 10 million users. It removes all unnecessary features while adding deep integration for an unparalleled user experience that will meet your needs no matter what they are! Scanner Go is a simple, yet powerful tool that allows you to work more efficiently. It integrates seamlessly with your other tasks and helps simplify the way people manage their documents by providing tools such as compression, conversion, editing & signing . With these capabilities, Scanner Go has made managing pdf files easy!Starting Price: $0 -
27
LightPDF
Wangxu Technology Co.,Ltd.
LightPDF was designed to allow everyone to process PDF documents in the easiest way possible. Indeed, LightPDF comes with an easy-to-use interface. With this program, you can perfectly read PDF, edit or convert PDF. Built-in PDF editing features: Modify a PDF: add texts, annotate, insert links, add headers and footers. Convert PDF to other formats: Word, Excel, PPT, JPG, PNG, HTML, etc. Manage PDF pages: insert or delete pages, rotate pages, extract, replace, split or merge pages. Sign a PDF: add a manual or digital signature. Lock PDF: Add a password to your PDF document. Other tools: OCR, compress PDF, add background, etc. This all-in-one online PDF solution includes over 20 practical PDF tools which may simplify your digital work and boost productivity. You are able to edit, convert, compress, merge, annotate, watermark and manage PDFs or use the OCR functions without a hitch.Starting Price: Free -
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PDF Converter
PDF Converter
No matter what types of files you need to convert, our online file converter is more than just a PDF file converter. It’s the go-to solution for all of your file conversion needs. With a free trial of our online PDF converter, you can convert files to and from PDF for free, or sign up for one of our memberships for limitless access to our file converter’s full suite of tools. You also get unlimited file sizes as well as the ability to upload and convert several files to PDF at the same time. We care about the privacy of your data. 256-bit SSL Encryption of all your files means that your files, documents, and data are secure. We also won’t give or share any of your data with other parties. Our PDF file converter does more than convert files to PDF. From compression and rotation to merging two different PDFs and splitting one PDF into two, you can easily edit your PDF files with our suite of tools in the blink of an eye.Starting Price: Free -
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JinaPDF
JinaPDF
JPG & PNG to Text Converter. Extract text from your images online. Based on OCR technology, our tool will convert your scanned JPG, PNG, and PDF to one single Text file. Just select your JPG or PNG image file, and after some seconds our tool will automatically extract all text found on your image, you will be able to download it from one single text file. We have integrated OCR technology into our tool, so with this function, we have the best way to extract text from scanned image files. We are very happy that our converter support now has more formats than JPG, so PNG, BMP, GIF, and many others are now supported, you can enjoy converting them to txt. Don't worry about your files, all uploaded and generated files will be removed from the server. Our image-to-text OCR-based converter support many languages, you need just to choose the language before uploading your image file.Starting Price: Free -
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Lumin PDF
Lumin PDF
We are the bridge between paper and the cloud, our seamless PDF workflows help you achieve greater impact with less administration. Edit PDFs within Google Workspace. Open Lumin directly from Gmail, Google Drive, or Google Classroom. Uploading old documents to the cloud has never been easier. Get your team on the same page with real-time feedback and manual tools. Submit work, negotiate terms, and sign everything with Lumin Sign. Enjoy our comprehensive free plan for K-12 teachers and students. Our products are implemented using a rigorous and constantly updated security system. We also have a Google-verified storage system that ensures your files never have to leave Google Drive. Collaborate with your current colleagues and attract new ones with Lumin and Lumin Sign. Our innovative solutions are great on their own, but together they're even better. Lumin reduces the comings and goings of your team. With a cloud workspace integrated with Google, you can collaborate in real-time.Starting Price: $9 per month