Compress PDF

Reduce PDF file size while maintaining quality. Fast, secure, and free.

📄

Drag & drop PDF file here or click to upload

Supported: PDF files

Max 100MB per file

Selected File

File Name: document.pdf

Original Size: 0 KB

Pages: 0

⚙️ Compression Level

Low

Best quality

~10-20% smaller

Medium

Balanced

~30-50% smaller

High

Smallest size

~50-70% smaller

Compressing... 0%

✅

PDF Compressed Successfully!

Original Size

0 KB

→

New Size

0 KB

Saved 0% (0 KB)

💡 Smart Tips

Low compression maintains near-original quality, ideal for professional documents
Medium compression offers best balance for most use cases
High compression significantly reduces size but may affect image quality
PDFs with many images compress more than text-only documents
Already compressed PDFs may show minimal size reduction

📖 How to Use This Tool

Upload your PDF file by clicking or dragging it to the upload area
Review file information including size and page count
Select your preferred compression level (Low, Medium, or High)
Click "Compress PDF" to start the optimization process
Download the compressed PDF file to your device

✨ Uses & Benefits

Reduce file size for faster email attachments
Save storage space on your device or cloud
Speed up file upload and download times
Meet file size limits for online submissions
Optimize PDFs for web publishing
Improve document sharing efficiency
Reduce bandwidth usage when sending files

🔗 Related PDF Tools

❓ Frequently Asked Questions

Is this tool free?

Yes, completely free with no limitations on file size or compression count.

Are my files safe?

Absolutely. All processing happens locally in your browser. Files are never uploaded to any server.

Which compression level should I choose?

Low for professional documents, Medium for general use, High for maximum size reduction when quality is less critical.

Will compression affect PDF quality?

Low compression maintains near-original quality. Medium has minimal impact. High compression may reduce image quality noticeably.

Why didn't my PDF compress much?

Text-only PDFs or already-compressed PDFs may show minimal reduction. PDFs with high-resolution images compress better.

What's the maximum file size?

The tool supports files up to 100MB, though browser memory may limit processing of extremely large files.

🔒 Privacy & Security: All file processing happens entirely in your browser using client-side JavaScript. No files are uploaded to our servers. Your documents remain completely private and secure on your device.

⚠️ Limitations & Notes

Maximum file size: 100MB per PDF
Browser memory limits may affect very large files
Supported format: PDF only
Requires modern browser (Chrome, Firefox, Safari, Edge)
JavaScript must be enabled
Actual compression ratio depends on PDF content

Disclaimer: This tool is provided for general use. Compression results may vary based on PDF content, structure, and existing compression. Always verify that compressed files meet your quality and compatibility requirements before final use.