Compress PDF
Squeeze big PDFs down so they’re easy to email or upload. Free, no watermark, and it all runs in your browser — your file never gets uploaded.
Drop a PDF here, or browse
One PDF at a time · compressed on your device, never uploaded
Best for scanned or image-heavy PDFs. Pages are re-rendered as images, so text becomes non-selectable — keep the original if you need searchable text.
How to compress a PDF
- Drop your PDF into the box above.
- Pick a compression level (Balanced is a good start).
- Click Compress and wait while each page is optimized.
- Check how much you saved, then download the smaller PDF.
Frequently asked questions
- Is my PDF uploaded to a server?
- No. The PDF is compressed entirely inside your browser, so your file never leaves your device.
- How does the compression work?
- Each page is re-rendered as an optimized image and rebuilt into a new PDF. This works very well for scanned documents and image-heavy PDFs.
- Will the text still be selectable?
- No — because pages are rebuilt as images, selectable text and embedded fonts are flattened. If you need searchable text, keep the original file.
- Which level should I pick?
- Start with Balanced. If the file is still too big, try Strong; if quality matters more than size, use Light. The result shows how much you saved.