Compress PDF Files Online - Fast, Free & Secure
Reduce your PDF file size without compromising quality. Our advanced compression algorithm optimizes your documents for easy sharing, faster uploads, and reduced storage space.
- No file size limits
- 100% free to use
- No registration required
- Multiple compression levels
- Works on any device
- Batch compression
Lightning-Fast Compression
Our optimized compression engine processes your PDFs in seconds, not minutes. Whether you have a single document or hundreds of files, experience blazing-fast compression without the wait.
Download Instantly
Get your compressed PDFs immediately after processing. Download files individually or grab everything at once as a convenient ZIP archive for batch compressions.
Multiple Compression Levels
Choose from multiple compression levels to find the perfect balance between file size and quality. From light compression that preserves every detail to extreme compression for maximum space savings.
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Skip the file uploads. Design professional PDFs with our intuitive creator - add text, images, shapes, and more. Perfect for forms, certificates, flyers, and custom documents.
The only tool you need when you don't have a file to start with
How to Compress PDF Files
- 1
Upload Your PDF
Click the upload area or drag and drop your PDF files. You can add multiple files for batch compression.
- 2
Select Compression Level
Choose from Less (high quality), Medium (balanced), Extreme (maximum compression), or set a custom target size.
- 3
Apply Optional Settings
Enable additional options like removing metadata or converting to grayscale for extra size reduction.
- 4
Compress Your Files
Click the Compress button and watch as your files are processed instantly in your browser.
- 5
Download Results
Download individual compressed files or get all files at once in a convenient ZIP archive.
Everything You Need in a PDF Compressor
Powerful features designed to make PDF compression simple and effective
Smart Size Reduction
Intelligent algorithms analyze your PDF to achieve optimal compression while maintaining readability.
Batch Processing
Compress hundreds of PDF files simultaneously with our efficient batch processing system.
Real-Time Preview
See compression results instantly with file size comparisons before downloading.
Works Everywhere
Use on any device - desktop, tablet, or mobile. No software installation required.
Instant Results
See compression results immediately. No waiting for server processing.
Custom Target Size
Set a specific target file size and let our tool optimize compression accordingly.
No Size Limits
Compress PDFs of any size without restrictions. Handle large documents with ease.
Quality Preservation
Advanced algorithms ensure text remains crisp and images stay clear after compression.
Frequently Asked Questions
What compression levels are available?
We offer three compression levels: Less (high quality, modest reduction), Medium (balanced quality and size), and Extreme (maximum compression for smallest file size).
Is my file private and secure?
Absolutely. Your files never leave your device. All compression is done in your browser - no uploads, no data collection. Your documents remain 100% private.
Can I compress multiple files at once?
Absolutely! You can drag and drop or select multiple PDF files to compress them all at once. Download individually or as a single ZIP archive.
What does the grayscale option do?
Enabling grayscale converts all colors in your PDF to black and white, which can significantly reduce file size for documents where color is not essential.
What does Remove Metadata do?
This option strips out document metadata like author name, creation date, and software information, providing extra privacy and slightly smaller file sizes.
Can I pause or cancel compression?
Yes, when compressing multiple files you can pause the process to resume later or cancel entirely. Individual file progress is preserved when pausing.
Why is my compressed file larger?
Some PDFs are already highly optimized. If compression results in a larger file, try a higher compression level or the file may not benefit from further compression.
How long does compression take?
Compression is instant for most files. Processing happens directly in your browser, so speed depends on your device and the PDF size. Most documents compress in just a few seconds.