PDFQuokkaHome › Compress PDF
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Compress PDF
Shrink a PDF's file size so it's easy to email and upload. Fast, free, and 100% private.
Drop your PDF here
just one file — it stays on your device
How to compress a PDF
1
Add your PDF
Drop the file into the box above or pick it from your device.
2
Pick a level
Stronger compression means a smaller file; lighter keeps more detail.
3
Compress & download
See the new size and download your smaller PDF.
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Your file never leaves your device
PDFQuokka compresses your PDF right here in your browser — nothing is uploaded or stored.
Frequently asked questions
How does the compression work?
Each page is rendered to an image and re-encoded at a lower quality, then rebuilt into a new PDF. This works best for scanned or image-heavy PDFs. Note that text becomes part of the image, so it's no longer selectable.
Are my files uploaded to a server?
No. Compression happens entirely in your browser. Your PDF never leaves your device.