Compress PDF
Reduce PDF file size while keeping it readable.
How to use
- 1Choose a PDF file or drag and drop it into the box.
- 2Pick a compression level: Basic, Recommended or Strong.
- 3Click “Compress PDF” and wait while each page is processed.
- 4Compare the sizes and download your smaller PDF.
Frequently asked questions
Is Compress PDF free?
Yes. It's free with no sign-up, no watermark and no daily limit.
Is my PDF uploaded to a server?
No. Compression runs entirely in your browser, so your document never leaves your device.
Which compression level should I pick?
Basic keeps text selectable and gives a small saving. Recommended works best for scanned documents and photos. Strong gives the smallest file, with lower image quality.
Will I still be able to select and search text?
With Basic, yes. Recommended and Strong turn each page into a compressed image, so text can't be selected or searched afterwards. Keep your original if you need that.
Why didn't my PDF get smaller?
Some PDFs are already well optimized, especially text-only documents. Try a stronger level, or the file may already be as small as it can be.