Compress PDF
Select compression level
How to Compress a PDF for Free
- Open the compress tool and select your PDF from your device.
- Pick a compression level — lower size trades off some visual quality.
- Run compression and review the estimated savings.
- Download the smaller PDF; the whole process runs in your browser.
FAQ
- Is it safe?
- Yes. The file is processed locally; it is not uploaded to OmniPDF for compression.
- Does it work on mobile?
- Yes, though very large PDFs may take longer or strain memory on phones.
- Are files stored?
- No. Compressed output is created in your browser and not kept on our servers.
No. Your files stay on your device. PDF to image and image to PDF conversion runs in your browser.