Online PDF Compressor
Reduce your PDF file size for easy sharing and storage, without sacrificing quality.
or drag and drop it here
Simple, Secure, and Effective
Browser-Based
No uploads needed. Your PDF is compressed directly on your device, ensuring maximum privacy and security for your documents.
Easy to Use
Just upload your file, click one button, and download the result. It's the simplest way to make your PDFs smaller.
Optimized for Sharing
Smaller PDFs are easier and faster to email, upload, or share with others. Compress your files before sending them to save time and bandwidth.
About Our Compression Method
This tool provides a **basic level of compression** by optimizing the PDF's internal structure and removing redundant data. It does not re-compress images, which is the most effective way to reduce the size of image-heavy PDFs. The results will vary depending on the file.
Frequently Asked Questions
How do you compress the PDF without uploading it?
Our tool uses the 'pdf-lib' JavaScript library to run directly in your browser. It rewrites and optimizes the PDF's internal structure locally on your computer. Your file is never sent to a server.
How much will my file size be reduced?
The reduction amount varies greatly depending on the original PDF. Documents with redundant data or inefficient structures will see significant savings. However, already optimized PDFs may see little change. Our tool provides a basic level of compression.
Will compressing the PDF reduce its quality?
Our basic compression method primarily removes unused objects and optimizes the document structure. It does not re-compress images or alter visible content, so the quality should remain largely unchanged for most documents.
Your Privacy is Our Priority
This tool runs entirely in your browser. We do not upload, store, or analyze your files. Everything you process stays on your device. Period.