PDF Tool
Best Free PDF Compressor Online
The best free PDF compressor to reduce PDF size online. Smart optimization that shrinks files without losing text clarity or quality.
Upload PDF File
Select a PDF file to reduce its size instantly
How to Use PDF Compressor
- 1Upload your target PDF file using the file selector or drag and drop.
- 2Click 'Compress PDF' to initiate our structural optimization algorithm.
- 3Review the size reduction stats (original vs. compressed) displayed on screen.
- 4Download your optimized, small PDF file instantly.
Key Features
- Intelligent structural optimization beyond just image downscaling.
- No file upload—processing is 100% secure and happens on your local machine.
- Maintains full text searchability and high-resolution vector data.
- High compression ratios for files with heavy metadata or unused objects.