Question 1

How much can a PDF be compressed?

Accepted Answer

It depends on the content. PDFs with images can often be reduced by 40–70%; text-only PDFs less so.

Question 2

Will compression reduce quality?

Accepted Answer

Text stays sharp. Images may be re-sampled slightly to save space; you can pick the quality level.

Question 3

Is this tool free?

Accepted Answer

Yes. Every UltraTools utility is 100% free with no sign-up, no watermarks and no usage limits.

Question 4

Are my files or data uploaded to a server?

Accepted Answer

No. This tool runs entirely in your browser. Your files and text never leave your device.

Question 5

Do I need to install anything?

Accepted Answer

No installation is required. UltraTools works in any modern browser on desktop, tablet and mobile.

Compress PDF

Frequently asked questions