How does PDF compression work?

Our tool uses advanced algorithms to reduce PDF file size by optimizing images, removing unnecessary metadata, and compressing internal structures while preserving document quality and readability.

Will I lose quality when compressing my PDF?

Our compression maintains excellent quality. Low compression preserves original quality, Medium provides balanced results, and High compression optimizes for smallest file size while keeping content readable.

What's the difference between compression levels?

Low compression (10-30% reduction) keeps maximum quality. Medium compression (30-60% reduction) balances quality and size. High compression (60-80% reduction) maximizes file size reduction.

What's the maximum file size I can compress?

You can compress PDF files up to 50MB. Our tool handles multiple files simultaneously, allowing you to compress several PDFs in one batch.

Can I compress multiple PDFs at once?

Yes! Upload multiple PDF files and they'll all be compressed with your selected settings. Each file is processed individually and you can download them separately or all at once.

PDFyogi

Compress PDF

Optimize your PDF files by reducing their size without compromising quality. Perfect for email attachments, web uploads, and storage savings.

or Drag & drop files here

Max 1 files•Max file size: 100MB

Supported formats: .pdf, application/pdf

Professional PDF Compression Tool

Reduce your PDF file sizes by up to 80% without compromising quality. Our advanced compression technology uses WebAssembly-powered algorithms to optimize images, remove redundant data, and compress internal structures while maintaining document integrity. Perfect for sharing documents via email, uploading to websites, or saving storage space.

Key Features:

✓Smart compression with 3 quality levels (Low, Medium, High)
✓Reduce file sizes by 10-80% depending on settings
✓Batch processing - compress multiple PDFs simultaneously
✓Preserves text clarity and image quality
✓No file size limits or daily restrictions
✓100% browser-based - your files never leave your device

How to compress PDF files:

Click "Select Files" or drag and drop your PDF files
Choose your desired compression level (Low, Medium, or High)
Click "Compress PDF" to start the optimization process
Download your compressed PDF files with reduced file sizes

Your Privacy is Protected

All conversions happen locally in your browser. Your files never leave your device and are automatically deleted when you close this page.

Frequently Asked Questions

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More Tools

All tools are completely free and process files locally in your browser for maximum privacy.

Your Privacy is Our Priority

Unlike other PDF tools, we process your files directly in your browser using WebAssembly technology. This means your sensitive documents never leave your device.

Browser Processing

Processing happens in your browser

No File Uploads

No files uploaded to our servers

No Storage

We don't permanently store your files

Complete Privacy

Your files never leave your device during processing

100% Privacy Guarantee

We use cutting-edge WebAssembly technology to process your PDFs entirely within your browser. No uploads to our servers, no data collection, no privacy concerns. Just pure, local processing power.

Read our Privacy Policy

How Our Privacy-First Technology Works

WebAssembly Processing

We use WebAssembly (WASM) to run PDF processing libraries directly in your browser, eliminating the need to upload files to external servers.

Local Storage Only

Files are temporarily stored in your browser's memory during processing and automatically cleared when you close the tab or complete the task.

No Data Collection

We don't track, store, or analyze your file contents. Our analytics only measure tool usage patterns, not personal data.

GDPR Compliant

Our privacy-first approach means we're automatically compliant with GDPR, CCPA, and other privacy regulations worldwide.

Compress PDF Online - Reduce PDF File Size | PDFyogi