Compress PDF Online Free
Free PDF compression that actually respects your privacy. Your file stays in your browser the entire time, adjust quality, compress, download.
No account needed · zero uploads, verifiable in DevTools
PrivaPDF's compressor is free with no daily limit, with the full quality-control slider rather than a stripped-down version. There's no forced watermark and no waiting in an upload queue — compression happens the moment you drop the file, since it's running on your device rather than a shared server.
Compress as many PDFs as you need, one-off or in bulk.
Open DevTools → Network while converting. You'll see zero outbound requests. Every byte stays inside your browser tab.
Yes. Every tool is free with no daily limit. No account or credit card required.
No. All processing happens entirely in your browser using WebAssembly. Your file never leaves your device.
Image-heavy PDFs can often shrink 40–80%. Text-only PDFs typically compress 10–20%. Use the quality slider to find the right balance.
Yes. Once the page is loaded, you can disconnect from the internet and the tool will still work perfectly.