Compress PDF
Reduce the file size of a PDF document.
Basic version: Basic compression: the file is re-saved efficiently and pages are re-rendered at a lower quality. Very large or already-optimized PDFs may only shrink a little.
How to use
The Compress PDF is a free online tool — no sign-up or download is required. Reduce the file size of a PDF document.
- Choose a PDF file from your device.
- Click Compress PDF — the tool tries a quick re-save and two quality passes.
- Compare the before/after size and download the smaller file.
Frequently asked questions
What does the Compress PDF do?
Reduce the file size of a PDF document.
How do I use the Compress PDF?
Open the Compress PDF page, enter or upload your input using the form above, then click the main action button to get your result instantly. You can copy or download the result when you are done. No sign-up or installation is needed.
Is the Compress PDF free to use?
Yes. The Compress PDF is completely free, like every tool on SEO Tools by metacalculator.org. There is no sign-up, no watermark and no hidden limits.
Is my data private when I use the Compress PDF?
Yes. This tool runs entirely in your browser, so your input never leaves your device. Nothing is uploaded, stored or shared.