Compress PDF
Make a PDF smaller for email and messengers while keeping it readable.
🔒 Your files are processed in your browser and are never uploaded.
Email services and messengers often limit attachment size. Compression shrinks scans and photo-heavy PDFs several times over while text stays crisp, so the document remains easy to read and print.
How to use
- Choose a PDF file.
- Pick a compression level. “Recommended” suits most documents.
- Press “Compress PDF” and download the smaller file.
Questions and answers
How does compression work?
Images inside the PDF are scaled down to a sensible resolution and re-saved as JPEG, and unused data is removed. Text and vector graphics stay sharp.
Why did my file barely shrink?
Documents that contain mostly text are already small. The biggest savings come from scans and photos.
Are my files uploaded to a server?
No. Everything runs inside your browser, so your documents never leave your device. You can even use the tool offline once the page has loaded.
Is it free?
Yes, completely free, with no sign-up, watermarks or file limits.