Compress PDF
100% private — your files never leave your device
Reduce PDF file size by optimizing embedded images.
100% Private
Files are processed locally in your browser and never uploaded to a server.
Instant Results
No queues, no waiting — get your output the moment you click.
No Signup
Free to use with no account, no email, and no watermarks.
Works Everywhere
Runs on any modern device — desktop, tablet, or mobile.
What is Compress PDF?
Compress PDF is a free, browser-based pdf tool that reduce pdf file size by optimizing embedded images. It supports PDF file formats. Everything runs in your browser, so your files are processed on your device, not on our servers.
How it works
Upload your PDF document by dragging and dropping or browsing your files.
Adjust the available settings to your preference and preview changes in real time.
Click the process button to run the tool.
Download or copy your result instantly — no waiting, no email required.
Perfect for
- Reduce PDF file size by optimizing embedded images
- Merging or splitting PDF documents for sharing
- Reducing PDF file sizes for email attachments
- Adding watermarks or page numbers to documents
Why use it
- 100% browser-based — your files are processed on your device
- Free, with no signup or account required
- Instant results with no processing queues
- Works on any device — desktop, tablet, or mobile
- Supports PDF formats
- No watermarks on your output
Frequently asked questions
Is Compress PDF free?
Yes, Compress PDF is free to use, with no hidden fees.
Is Compress PDF safe to use?
Yes. Compress PDF runs in your browser, so your PDFs are processed on your device, not on our servers.
Do I need to install anything to use Compress PDF?
No. Compress PDF is a web-based tool that works in any modern browser — Chrome, Firefox, Safari, or Edge. Just open the page and start using it.
What file formats does Compress PDF support?
Compress PDF supports PDF format.
How does Compress PDF work?
Compress PDF is a pdf tool that reduce pdf file size by optimizing embedded images. Add your PDF, adjust the available settings, and get your result right away, all processed in your browser.
Does Compress PDF work on mobile?
Yes. Compress PDF is fully responsive and works on desktops, tablets, and mobile phones. The interface adapts to your screen size automatically.
Are there any limits when using Compress PDF?
Compress PDF has no daily usage caps and adds no watermarks. Because it runs on your device, very large files depend on your device's memory.
Ready to use Compress PDF?
Free, instant, and runs entirely in your browser. No download, no signup, no limits.
Takes less than 10 seconds