Compress PDF Online Free
Reduce your PDF file size by up to 90% without losing readability. Choose the right balance between quality and size — compression runs right in your browser, the file is never uploaded.
Your file never leaves your computer: everything is processed in the browser, nothing is uploaded.
Three steps — and you're done
The entire process takes under a minute. No software to install, no account required.
Upload your PDF
Drag the file into the upload area or click "choose a file". Files up to 200 MB are supported.
Select compression quality
Screen — maximum compression (72 dpi). eBook — balance of quality and size (150 dpi). Print — for sending to a printer (300 dpi).
Download the result
Click "Compress PDF" — the document is processed in your browser and saved to your computer. It is never uploaded.
Secure, fast, and free
The principles we uphold for every tool.
Files never uploaded
The document is processed inside your browser and never uploaded. You can see it yourself on the Network tab of the developer tools.
Works without the internet
Once the page has loaded, no connection is needed. Turn off the network and process a file — the tool keeps working. That is the simplest way to see the document goes nowhere.
No registration
No account, email, or password needed. Upload a file and get your result.
Works on any device
Fully responsive for phones and tablets — opens right in the browser.
Frequently asked questions
Answers on security, formats, and limitations.