Compress PDF Online
The fastest and most secure way to reduce PDF file size online. Shrink your PDF documents for free while maintaining perfect resolution.
Upload PDF to Shrink
or drag and drop your file here
How to Reduce PDF File Size Online?
Toolsmob makes it easy to compress PDF documents without compromising clarity. Follow our quick 3-step guide:
- Upload: Choose your PDF from your computer or mobile device.
- Optimize: Our AI-enhanced tool identifies redundant data for removal.
- Download: Click compress and save your new, lightweight PDF instantly.
The Best Free PDF Compressor
Why choose Toolsmob? We offer unlimited PDF compression with no daily caps, no registration, and absolutely no watermarks on your files.
Our unique browser-side technology ensures that your files never leave your computer, making it the most private and secure way to manage sensitive documents online.
PDF Compression Help & FAQ
No, our tool is optimized to shrink file size while keeping text sharp and readable. Images are compressed using smart algorithms to balance size and clarity.
Yes! Toolsmob is fully responsive and works perfectly on iPhone, Android, and tablets without needing to install an app.
Browser-side processing (like Toolsmob) is the safest method because your file is never uploaded to a remote server. Everything happens on your device.