Shrink a PDF down to size
Got a PDF that’s too big to send? Shrink it on your own device — repacked losslessly, with an optional image pass for stubborn, scan-heavy files. It’s never uploaded.
Shrink a PDF to beat size limits
Mail servers and upload forms cap file size; a bloated PDF gets bounced. Shrinking it here repacks the file in your browser so it slips under the limit — without handing your document to an upload site.
Two levels of shrinking
The default lossless pass tightens the file’s structure with no visible change. When that isn’t enough, the image-shrinking option re-encodes embedded images — smaller still, at some quality cost, and entirely your choice.
Your files never leave your browser
There's no upload. Everything happens on your device using WebAssembly — the bytes never travel to a server, so your documents stay yours. No ads, no third-party trackers, no accounts. We collect only an anonymous count of how often each tool is used. It's free, and it stays free.
How it works
-
Drop in your PDF — Or click to choose one. It stays on your device.
-
Shrink it — Run the lossless pass, or enable image shrinking for a smaller, lossy file.
-
Download — Get a leaner PDF, ready to send. Done.
Frequently asked questions
- What’s the difference between the two options?
- Lossless repacks the file with no quality change. “Shrink images” additionally re-encodes images for more savings, trading a little image quality.
- Does shrinking happen on a server?
- No. The whole thing runs in your browser, so the file never leaves your device.
- Are my files uploaded anywhere?
- No. Everything happens in your browser; files never leave your device.
- Is it really free?
- Yes — no account, no payment, no watermark on your output.