About the Compress PDF tool
Compress PDF reduces the file size of your document so it is easier to email, upload, or store. Upload your file to see a thumbnail preview of every page, choose a compression level, and the tool re-renders each page as an optimized image and rebuilds a lighter PDF. This gives real, visible size savings — especially on scanned or image-heavy PDFs. Everything runs in your browser, so your private documents never touch a server.
How to use the Compress PDF
- Upload the PDF you want to make smaller.
- Choose a compression level: Less, Recommended, or Extreme.
- Click Compress PDF.
- Download the smaller copy and compare the new size.
Features
- Real compression by re-rendering pages as optimized images.
- Three levels to balance quality and file size.
- Page thumbnail preview of your document.
- 100% client-side — your files stay on your device.
- Shows exactly how many KB or MB you saved.
Your privacy
The Compress PDF runs entirely inside your web browser. Your files and text are never uploaded to any server, so your data stays private on your own device — just like the workflow trusted on sites such as iLovePDF and Sejda, but with nothing leaving your computer.
Frequently asked questions
How much smaller will my PDF get?
It depends on the content; scanned and image-heavy PDFs shrink the most. Use the Extreme level for maximum savings.
Will the text still be selectable?
This tool rebuilds pages as images for strong compression, so text becomes part of the image. Use the Less level to keep pages sharp.
Is Compress PDF safe for confidential files?
Yes. The tool never uploads your document; all compression happens locally in your browser.