Compress PDF online for free
Compress your PDF files online.
Accepted source formats
How it works
Drag and drop your PDF or click to select
Choose your desired compression level
Download your compressed PDF
Common mistakes
- Using a source file of poor quality.
- Publishing without checking the final result.
- Confusing file size, dimensions and quality.
- Overwriting the original file without keeping a copy.
Pro tips
- Always keep an original version.
- Test several settings before downloading.
- Use WebP for the web when possible.
- Choose descriptive file names for SEO.
Privacy guaranteed
Your files are processed locally in your browser and are never uploaded to our servers.
Compress PDF without visible quality loss
Our smart compression algorithm analyzes your PDF and reduces its size by up to 90% while preserving text readability and image sharpness. Ideal for professional documents, reports, presentations, and scanned files. Shrink your PDF weight in seconds: go from several MB down to a few KB, ideal for email attachments, online sharing or web optimization. Lossless or lossy compression depending on the chosen ratio.
PDF compression for email and attachments
Email services often impose a 10-25 MB limit per attachment. With our tool, reduce large PDFs to send them via Gmail, Outlook, Yahoo or any other email service. No need for external transfer services for your important documents.
Compress PDF for free without signup
Unlike other online tools, our PDF compressor isrequiresor account creation. No daily limits, no watermarks added. Compress as many PDF files as you want, immediately.
Fast online PDF compression
Processing happens directly in your browser, ensuring ultra-fast compression. No upload to remote servers: your files stay on your device. Perfect for compressing PDFs on mobile, tablet or computer.
Optimize PDF for web and social media
Lighten your PDFs for faster loading on your website, blog or sharing platform. An optimized PDF improves user experience and page SEO. Also perfect for sharing on LinkedIn, Facebook or professional groups.
Discover all our PDF tools
Compress, merge, convert, edit and protect your documents in a few clicks.
Complementary tools
Guides and tutorials
Learn how to use our tools with our detailed guides.
How to convert a PDF file to PDF? online
Convert your PDF files to PDF for free, online, no signup or installation. Change file extension fast, in batch, directly in your browser.
How to convert a PDF file to PDF? online
Convert your PDF files to PDF for free, online, no signup or installation. Change file extension fast, in batch, directly in your browser.
How to convert a PDF file to PDF? online
Convert your PDF files to PDF for free, online, no signup or installation. Change file extension fast, in batch, directly in your browser.