Compress PDF
Reduce the size of your PDF by re-encoding and downscaling embedded images. Great for email attachments and uploads — all done privately in your browser.
Drag & drop files here
or browse to choose a file
🔒 Processed on your device — never uploaded
How to compress pdf
- 1
Upload your PDF.
- 2
Choose a compression level.
- 3
Download your smaller PDF.
100% on your device
Your files are processed right here in your browser and are never uploaded to any server.
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Frequently asked questions
Are my files uploaded to a server?＋
No. Every operation runs entirely inside your browser using WebAssembly and JavaScript. Your files never leave your device and nothing is uploaded, stored, or seen by us.
Why is my file not much smaller?＋
PDFs that are mostly text or vector graphics are already compact. The biggest savings come from documents full of photos or scans.