Free PDF Tool
Compress PDF Online Free
Reduce your PDF file size quickly and easily. Choose from multiple compression levels. 100% client-side processing means your files never leave your device.
PDF Compressor
Drop your PDF here
or click to browse
Max 100MBHow It Works
Simple 3-Step Process
Compress your PDF files in seconds without uploading to any server.
- 1. Upload Your PDFDrag and drop or click to select your PDF file. Files up to 100MB are supported.
- 2. Choose CompressionSelect your preferred compression level based on your quality and size needs.
- 3. Download ResultGet your compressed PDF instantly. No waiting, no email required.
Why Use This Tool
Fast, Private, Free
Our PDF compressor runs entirely in your browser for maximum privacy and speed.
100% Private
Your files never leave your device. All processing happens locally in your browser.
Instant Processing
No upload/download wait times. Compression starts immediately on your device.
No Limits
Compress as many PDFs as you want. No daily limits, no account required.
About PDF Compression
This tool uses pdf-lib to optimize PDF structure by removing unused objects and enabling object streams. The actual compression achieved depends on your PDF's content:
- Works well: PDFs with redundant data, unoptimized structure, or text-heavy content
- Limited effect: Already-optimized PDFs or image-heavy documents (images are not recompressed)
FAQ
Frequently Asked Questions
Common questions about compressing PDF files online.
Turn Your Compressed PDF Into a Flipbook
Upload your compressed PDF to Flipbooker and create an interactive, trackable flipbook in seconds.
Create Free FlipbookNo credit card required. See who reads your content.