FREE TOOL · ON YOUR DEVICE
Compress PDF online free
Ideal for scanned PDFs, catalogues or photo-heavy presentations that do not fit in an email or a form. Choose the level and see how much each file shrinks.
- Free, no watermark
- Text is not changed
- Up to 5 PDFs at once
- Add your PDFs
- Choose the level
- Download
HOW TO USE IT
Three steps.
Add your PDFs
Drop or choose up to 5 PDFs without a password.
Choose the level
Light, recommended or strong. Stronger means a smaller file and less detail in photos.
Download
Download each compressed PDF or all of them in a ZIP, with the size before and after.
NEXT STEP
Keep going with these tools
Compress PDF: common questions
Why did my PDF barely shrink?
This tool shrinks the photos and scans inside. A mostly text PDF is already small and hardly changes; in that case you get the original back.
Is quality lost?
Only in images, which are saved with lower resolution and more compression depending on the level. Text, fonts and drawings stay the same.
Which images are compressed?
JPEG photos in colour or greyscale, the usual kind in scans and catalogues. Other images are left as they are.
Are my PDFs uploaded to a server?
No. The tool runs inside your browser: documents are read and processed on your device and are not sent to Cocuyo or to any third party. The PDF libraries are served from our own site, with no external services. You can check it in your browser’s network tools: your file is not sent.
Is it really free?
Yes. You can try it before signing up; to download the result we ask for a free account, with no subscription. Your free account comes with 30 welcome uses; after that, each use costs 1 credit (top-ups from US$1), and they are unlimited with Basic or Pro. It never adds a watermark.
What are the limits?
PDFs without a password, up to 100 MB per file. Pages are processed bit by bit so the tab stays responsive; on a phone, a very large PDF may take a few seconds longer.
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WHEN YOU WANT TO CREATE
Make new images with AI.
Cocuyo’s Studio brings 30+ AI models for image, video and voice together. You see the credit cost before generating, and credits never expire.