Shrink PDF

Shrink PDFs online for free without compromising quality

Shrink PDFs on the Go

Smallpdf is cloud-based. You can shrink your PDFs from anywhere with an internet connection—whether you’re using a computer, a tablet, or your mobile phone.

Do More With Smaller Files

Smaller files are easier to share, take up less storage space, and make collaboration easier. After you shrink the size of a PDF, use our other tools to share, edit, convert, and much more.

Shrink Your PDF on Any System

Need to shrink a PDF file’s size on a Mac? No problem! Our software works on any operating system, including Mac, Windows, and Linux.

Shrink Other Files Types

Use our tools to shrink files other than PDF. You can drop images and Office files into the toolbox above, including Excel, Word, and JPG.

Utmost Safety & Privacy

We use high-level TLS encryption to ensure we process your files as securely as possible. We’re also GDPR compliant and ISO/IEC 27001 certified, so you never have to worry about your data’s integrity.

Multiple Files at Once

With a Smallpdf Pro subscription, you can shrink multiple PDFs at the same time. Just select your files and drop them into the tool. Try it out with a 7-day free trial.

How To Shrink the Size of a PDF

Drop your PDF into the toolbox.
Wait while we shrink your file in seconds.
Select “Strong compression” to make the file even smaller.
Download your file—done!