Compress PDF

Reduce PDF file size while keeping good quality.

100% Free. No sign-up, no watermarks, no limits

📂

Drop a file here, or browse

PDF · APPLICATION/PDF

Compress PDF — Free Online Converter

Bounced back by an attachment size limit? This shrinks a large PDF down enough to email or upload while keeping it readable, so you don't have to compromise on quality just to get it under the cap.

How to compress a PDF in 3 steps

1Drag your PDF into the box above, or click to browse.
2We reduce the file size while preserving readable quality.
3Download your smaller, compressed PDF instantly.

Frequently asked questions

Will compressing reduce the quality?

We balance size and quality so your PDF stays clear and readable while the file size drops significantly.

Why should I compress a PDF?

Smaller PDFs are faster to upload, easier to email within attachment limits, and take up less storage space.

Is Compress PDF really free?

Yes — Compress PDF is 100% free. There's no account to create, no subscription, no trial, and no daily limit. Convert as many files as you like.

Are my files safe and private?

Your files are processed in memory and never stored on our servers. Any temporary files are deleted automatically right after processing finishes.