Compress PDF Online — Free & Instant

Reduce your PDF file size without losing quality. Works directly in your browser — your files never leave your device.

🔒 100% Secure — Files stay local
⚡ Fast — Instant processing
🆓 Free — No sign up needed
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Drag & drop your PDF here

or

Choose PDF File Supported: PDF · Max size: 50MB

Compression Settings

document.pdf
Original size: 0.0 MB
💡 Flattens the PDF pages into JPEG images. Great for scanned documents, but removes text selection, links, and forms.
Compression Strength 50%
Low (Best Quality) Medium High (Smallest Size)
💡 Default Engine: Re-compresses images at custom quality of 50% with 1.6x resolution downscaling.
⏱ Usually takes a few seconds
Analyzing PDF...
0%

Your PDF is ready!

Original size: 0.0 MB
Compressed size: 0.0 MB
You saved:
-0% 0% 🎉

Your file is processed locally and deleted from memory after download.

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🔒

No Upload Required

Your PDF is compressed directly in your browser. It never reaches our servers.

⚡

Instant Results

Compression happens in seconds right on your device, no waiting for uploads.

🎯

Three Quality Levels

Choose Low, Medium, or High compression to balance quality and file size.

📱

Works on Any Device

Desktop, tablet, or mobile — the tool works on all modern browsers.

🆓

Always Free

No account needed, no watermarks, no hidden fees.

♾️

Unlimited Use

Compress as many PDFs as you want, one at a time, for free.

How to compress a PDF in 3 steps

1

Upload your PDF

Drag and drop or click to select your PDF file from your device.

2

Choose quality

Pick Low, Medium, or High compression based on your preferences.

3

Download

Click download and get your smaller compressed PDF instantly.

Frequently asked questions

Is it safe to compress my PDF here?
Yes. Your PDF is processed entirely in your browser using JavaScript. It never gets uploaded to any server. Your files stay 100% private on your device.
Will compression reduce the quality of my PDF?
It depends on the compression level. "Low" compression has almost no visible quality difference. "High" compression is best for scanned documents or when file size is more important than image sharpness.
What is the maximum file size I can compress?
You can compress PDF files up to 50MB. For very large files, "High" compression is recommended.
Can I compress a PDF on my phone?
Yes. I EDIT PDF works on all modern mobile browsers including Chrome, Safari, and Firefox on Android and iPhone.
Does compressing a PDF remove pages?
No. Compression only reduces the file size by optimizing images and content inside the PDF. All pages remain intact.
Is there a limit to how many PDFs I can compress?
No limit. You can compress as many PDFs as you want, one at a time, completely free.
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