Compress PDF
Shrink the file size of a PDF while keeping it readable, with selectable quality.
🔒 Your files are processed securely over HTTPS and deleted automatically after your download.
Email attachment limits and slow uploads usually come down to oversized PDFs. Compression re-encodes images and strips waste to cut file size dramatically, with quality levels so you can trade a little sharpness for a much smaller file.
How to use Compress PDF
- Upload the PDF you want to make smaller.
- Pick a quality level — Recommended balances size and clarity; higher compression means a smaller file.
- Click Compress and we'll optimise the images and structure.
- Download the smaller PDF and check the size saving.
Frequently asked questions
How much smaller will my PDF get?
It depends on the file — image-heavy PDFs often shrink by 50-90%, while text-only PDFs are already small and change less.
Will compressing make my PDF blurry?
At the Recommended level the difference is hard to notice; choose a stronger level only when you need the smallest possible file.
Is this tool free to use?
Yes. You can use it for free with no account required and no watermark added to your file.
Are my files kept private?
Your file is sent over an encrypted HTTPS connection, processed on the server, and deleted automatically right after your download. Nothing is stored or shared.