Free PDF compressor.Compress large files into a tidy PDF for easy sending.
Brands that choose us
You’ve got the files, we’ve got the tools.
Try Lumin's free PDF compressor tool.
Reduce the size of your PDFs
Compress and go
Compress, don't zip
Do more doing with Lumin.
Try our PDF compressor for free.
How to compress a PDF
Plans & pricing
Access limited features
Limited file upload size (20MB)
Unlimited editing feature
Unlimited page tools
Priority email support
Jun 28, 2022
Say hello to Circles: Our greatest tool for collaboration
Remote work is old news, but finding the right tools to get things done online isn’t. Discover a better way to collaborate with Lumin.Read more Say hello to Circles: Our greatest tool for collaboration
Mar 18, 2022
Here's what you get with Lumin PDF.
Edit, view, share and collaborate with Lumin, a comprehensive solution for document editing, cloud collaboration, and project management - all from one intuitive, user-friendly interface.Read more Here's what you get with Lumin PDF.
Oct 04, 2021
Get to your documents faster with the Lumin desktop app
At Lumin, we’re always looking for new ways to streamline working and sharing. We also understand that speed is of the essence for effective project management. Armed with Lumin’s brand-new desktop app, your documents will only ever be a click away.Read more Get to your documents faster with the Lumin desktop app
See why over 70 million people choose Lumin
Frequently Asked Questions
What is Lumin vs Lumin Tools?
Lumin Tools is a sub-site of Lumin hosting more advanced editing features such as the PDF Unlocker tool, OCR reader, Convert, Compress and more. Both sites are completely free to use.
Is Lumin free?
Sure is! Though we do have options for people and businesses wanting to unlock all our features – such as unlimited storage and certain tools only available to Professional users – you can try Lumin professional free for 7 days, or stay on a free plan. Discover our plans here to learn which one is the right fit for you.
How do I use Lumin?
Lumin works on your browser, or you can download our desktop app and keep Lumin handy on your computer. We’ve also got a mobile and tablet app which includes Lumin’s most popular features.
Can I just compress a PDF and go?
Yes, absolutely. You do need to create an account in order to use Lumin Tools, but it’s easily done and you’ll be accessing the compressor function in no time. You’ll have a range of other PDF features at your disposal too, should you choose to explore them.
Why is compressing better than ZIP?
When you ZIP a PDF file and send it from person to person, your files and data have a higher chance of becoming corrupt along the way. Plus, Lumin’s compressor tool is fast, easy and free. Save yourself the trouble and compress from the get-go!