Online PDF Compressor Tool
Free Online PDF Compressor is a quick, safe and easy way to reduce PDF file size directly in your browser. No downloads, no installation, no sign-up needed. Just upload your PDF, pick a compression level, and get a smaller file in seconds.
Choose from four compression levels to balance size and quality. Light compression keeps near-original quality for professional documents. Extreme compression cuts file size by up to 95% for archiving or email. Your text stays sharp and your layout stays intact at every level.
This PDF size reducer works on any platform: Windows, Mac, Linux, Android or iPhone. Whether you need to meet email attachment limits, save storage space, or speed up file sharing, this tool gets it done without any hassle.
How to Compress a PDF Online
- Upload Your PDF: Drag and drop your file into the editor, or click to browse and select it from your device.
- Choose Compression Level: Pick from four levels: low, balanced, high, or extreme. Low keeps maximum quality. Extreme gives you maximum size reduction.
- Compress & Download: Hit the compress button and you're done! Your smaller PDF will be ready to preview and download in just a few seconds.
Compression Level Guide
Pick the right compression level based on how you plan to use the file.
- Low (High Quality): Minimal reduction (~10-20%). Best for legal contracts, blueprints, and professional portfolios where visual fidelity matters most.
- Balanced (Recommended): Significant reduction (~40-60%) with excellent quality. The safe choice for most business documents, reports, and presentations.
- High (Web Ready): Strong reduction suited for email attachments, website assets, and mobile viewing. Images are slightly optimised to fit bandwidth constraints.
- Extreme (Max Savings): Maximum reduction (~80-95%). Best for long-term archiving, thumbnails, or internal records. Text stays sharp, images may show some compression.
Why Use API Freaks Tool to Compress PDFs?
Need to shrink your PDF files without the hassle? Our free online PDF compressor reduces file sizes in seconds, right from your browser. Whether you're trying to fit a report under an email size limit, saving storage space on large document libraries, or optimizing files for faster web downloads, this tool makes it simple. No downloads, no complicated software, just smaller PDFs when you need them.
Free to Use
Compress PDFs up to 20MB for free with no sign-up required. Need larger size limits? Sign up for higher file limits and file history.
Four Compression Levels
Pick the right balance between file size and quality. From light compression that preserves every detail to extreme mode that cuts size by up to 95%.
No Quality Loss on Text
Your text, fonts, and layout stay crisp at every compression level. The tool intelligently optimizes images and strips redundant data while keeping your content intact.
Works Everywhere
Use it on any device or operating system: Windows, Mac, Linux, iPhone, or Android. No installation needed.
No Software Needed
Compress PDFs without Adobe Acrobat or paid subscriptions. Just your browser.
Safe & Private
Guest user files are only saved in their own browsers and deleted after processing within a few hours. Registered users have full control with secure file history that you can preview or delete anytime, giving you complete privacy over your data.
Compression History & Control
Registered users get full file and compression history with the ability to reuse file IDs for quick operations. Guest users can access their history during the session.