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.