Free Online Tool
PDF Compressor Tool
Reduce your PDF file size instantly â right in your browser. No uploads, no server, 100% private and secure.
Upload Your PDF File
Drag & Drop your PDF here
or click to browse â PDF files only
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File size exceeds the free plan limit.
Compression Level
CompressingâĻ
0%
Compression Complete!
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Original Size
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Compressed Size
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Size Reduced
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Pages
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Level Used
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Time Taken
How to Compress a PDF
1
Upload PDF
Drag & drop or click to select your PDF file from your device.
2
Choose Level
Select Light, Medium, or Aggressive compression based on your needs.
3
Compress
Click "Compress PDF" and our tool will process it instantly in your browser.
4
Download
Download your optimized PDF with a smaller file size.
Why Use Our PDF Compressor?
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100% Private
Files never leave your browser â processed locally.
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Lightning Fast
Instant compression powered by pdf-lib engine.
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Mobile Friendly
Works perfectly on phones and tablets.
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Free to Use
No registration needed â compress PDFs for free.
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3 Levels
Light, Medium, and Aggressive compression modes.
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Detailed Stats
See exactly how much space you saved.
Frequently Asked Questions
How does the PDF Compressor work?
Our PDF Compressor works entirely in your browser using JavaScript-based compression. It removes redundant data, optimizes PDF structure, and reduces embedded resource sizes â all without uploading your file to any server.
Is it safe to compress my PDF online?
Yes, absolutely! Your file is processed entirely in your browser and never sent to our servers. This guarantees complete privacy and security for your documents.
Will compressing reduce the quality of my PDF?
It depends on the compression level. Light compression preserves maximum quality with modest size savings. Aggressive compression achieves maximum size reduction with some quality trade-offs. Choose the level that fits your needs.
What is the maximum PDF size I can compress?
Free users can compress PDF files up to 10MB. Pro users enjoy support for files up to 100MB with advanced compression features and unlimited daily compressions.
Can I compress multiple PDFs at once?
Batch compression is available for Pro users. Free users can compress one PDF at a time. Upgrade to Pro to unlock batch processing and save time when compressing multiple files.