Compress PDF
Reduce file size. Fast, free and secure — right in your browser.
Drag & drop your file hereor click to browse from your device
PDF files · Max 50 MB
How to Compress PDF
No installs, no accounts — just three steps.
Upload your file
Drag your PDF file into the box above, or click to browse.
Adjust the options
Pick the settings you need — or just keep the smart defaults.
Download the result
Press process and save your finished file in a couple of seconds.
Private & secure
Encrypted transfer, and files auto-delete after 30 minutes.
Lightning fast
Most files are processed in just a few seconds.
Free forever
Every tool is free, with no sign-up and no limits.
Any device
Works in any browser on desktop, tablet or phone.
Frequently asked questions
Everything you need to know about Compress PDF.
How do I compress a PDF without losing quality?
Upload your PDF and it is optimized by re-compressing images and removing redundant data, keeping the document clear while making the file smaller.
How much smaller will my PDF get?
Image-heavy PDFs often shrink dramatically; text-only PDFs compress less because they are already small.
Is Compress PDF free to use?
Yes. Compress PDF is completely free — no account, no software to install, and no watermark added to your files.
Are my files safe and private?
Your files are uploaded over an encrypted (HTTPS) connection, processed on our servers, and automatically deleted 30 minutes after processing. We never open, share, or keep copies of your documents.
Do I need to install any software?
No. Compress PDF runs entirely in your web browser and works on Windows, Mac, Linux, and mobile devices. There is nothing to download or install.