Compress PDF
Make a PDF smaller — fast, free, and completely private. Works best for scanned documents and image-heavy files.
🔒 100% private — your file never leaves your device
Received from another tool
Drag & drop your PDF
or click to browse — one PDF at a time
One PDF → Smaller PDF
No PDF yet
Compressing…
Original size
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New size
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Saved
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How it works
Three steps. No sign-up, no upload, no wait.
1
Add your PDF
Drop in one PDF. We check its size and page count right away.
2
Pick a quality
Slide toward smaller or sharper. Every page is redrawn as a tidy, compressed image.
3
Download the result
See exactly how much you saved, then grab your smaller PDF — made right on your device.
🔒
Private by design. Everything happens right here in your browser. Your PDF is never uploaded — we never see it.
Frequently Asked Questions
How does compressing a PDF work here? ▼
Each page is redrawn as a single compressed image and packed into a new PDF. That's why it shrinks scanned and photo-heavy files so well — you're trading a little sharpness for a much smaller size.
Why didn't my PDF get any smaller? ▼
If a PDF is mostly plain text it's already very efficient, so re-rendering it can't help and may even make it bigger. When that happens we keep your original and tell you plainly instead of handing back a worse file.
Which files does it work best on? ▼
Scanned documents and image-heavy PDFs see the biggest savings. Use the quality slider to trade size against sharpness until it looks right.
Will the text still be selectable afterwards? ▼
No. Because every page becomes an image, the result looks the same but the text is no longer selectable or searchable. If you need selectable text, keep your original.
Is there a limit on file size or page count? ▼
Very large files are warned about first and extremely large ones are declined, because everything runs on your own device and would otherwise use too much memory. For big documents, split them first and compress each part.
Is my PDF uploaded anywhere? ▼
No. Everything runs entirely in your browser on your own device. Your file is never uploaded and we never see it.