PDF tool · Free
Compress PDF
Reduce your PDF size without losing quality.
100% in your browser — your files never leave your device
Drop your PDF here or click to choose
PDF files only
How compression works
- Already-optimized PDFs (most text documents) have nothing to compress — we keep the file as is, never worse.
- Scanned, AI-generated or image-heavy PDFs compress a lot — but images lose a bit of quality.
Frequently asked questions
Is my PDF sent to a server?
No. Everything happens in your browser — the file never leaves your device.
Why does it sometimes not shrink?
If the PDF is already optimized (text), there’s nothing to remove. We return the original, never worse.
Any watermark or limit?
No. It’s free, no watermark and no file limits.