Compress PDF — free, private, no watermark
Shrink your PDF so it fits an email attachment limit or uploads faster. Runs entirely in your browser.
Try it free — no signup
Drop your PDF here to start
Runs in your browser — nothing uploaded
Lumen re-packs your PDF using compressed object streams and strips out metadata bloat. Great for freeing up storage or making files small enough to send. Works on any modern browser.
How it works
- Drop your PDF. Add any PDF from your device.
- Compress. Lumen re-saves the file with object streams and strips unused metadata.
- Download. Your smaller PDF is ready — same content, less bloat.
Why use PDF Free Edit
- Lossless — pages look identical
- No file-size limit for signed-in users
- No watermarks
- Runs locally in your browser
Frequently asked questions
How much smaller will my PDF be?
It varies. Text-heavy PDFs shrink modestly; PDFs with metadata bloat and duplicated objects shrink more. Scanned image PDFs need a different tool — try our upcoming image-downsample compressor.
Is quality reduced?
No. Lumen re-packs the same content losslessly — pages look identical to the original.
Are my files private?
Yes. Compression runs in your browser. Nothing is uploaded unless you save to your library.
Is it free?
Yes. One free compression per day, no signup. Sign up for 10 credits or go Pro for unlimited.
Ready to get started? It's free, no installation required.
Compress a PDF