Compress PDF Online
Optimize and rewrite the document for a smaller file.
100% processing in your browser. Your files never leave.
How Compress PDF Online works
1. Upload the file
Drop it on the belt or choose it manually. It stays on your device.
2. Local processing
The engine runs in your browser and transforms the file, with a live log of every step.
3. Download the result
The converted file drops into the output tray, ready to download instantly.
Why PixlPulse
Privacy
Your files never leave your browser.
Free
No account, no watermark, no hidden limits.
Offline
Works without a connection too, as a PWA.
Fast
Local processing, no upload time or queue.
About Compress PDF Online
PDF compression reduces a document's size while keeping the content readable — ideal for emailing or uploading to platforms with strict limits. This tool rewrites the document's internal structure and optimizes embedded images, all locally in your browser. The result is a smaller PDF file, no watermark, no extra software to install. Useful for scanned contracts, image-heavy reports, or PowerPoint exports that end up unreasonably large.
Frequently asked questions
No, compression runs entirely in your browser. The PDF file is never uploaded anywhere.
It depends on the content — PDFs with many scanned images can shrink by 50-80%. Already-optimized documents have little room for improvement.
No, text stays vector-based and perfectly readable. Only embedded images are optimized.
Yes, the tool supports batch processing for multiple files in the same session.