Compress Files
Reduce your file size while maintaining quality. Free, secure, and works offline in your browser.
Drop your file here
or click to browse from your device
Supports PDF and images (JPG, PNG)
How to Compress a PDF File
Select Your File
Choose your PDF or image file, or drag and drop it into the upload area.
Choose Compression Level
Select your preferred quality — higher compression means a smaller file size.
Download Compressed File
Your compressed file is generated instantly in your browser and downloaded to your device.
Secure & Private
Your files never leave your device. Compression runs 100% locally in your browser.
Adjustable Quality
Choose your compression level to balance file size and output quality.
Unlimited & Free
Compress as many files as you need — no limits, no subscription, always free.
No Account Needed
Start compressing immediately — no sign-up, no registration required.
Frequently Asked Questions
Is the PDF compressor free?
Yes, completely free. Compress as many files as you need — no account, no subscription, no daily limits.
Is my file uploaded to a server when I compress it?
No. All compression happens locally in your browser using JavaScript. Your files never leave your device — 100% private.
How much can I reduce a PDF's file size?
It depends on the PDF content. Files with many images can often be reduced by 50–80%. Text-heavy PDFs see smaller reductions since text is already compact.
Will compression reduce the quality of my PDF?
You choose the level. Higher compression reduces file size more but may slightly reduce image quality. Text and vector elements remain sharp regardless.
Does PDF compression work on iPhone or Android?
Yes. The tool works on iPhone, iPad, and Android in any modern browser — no app to install.