How does online PDF compression work?

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Compress PDF Online

Shrink large PDF documents for email and sharing with smart stream optimization.

Three compression presets: Extreme (~70%), Balanced (~50%), and Light (~30%)Real-time file size comparison and savings percentageDownsamples embedded images while preserving page layout

Drop PDF here to compress file size

Reduce PDF file size up to 75% with smart optimization and complete privacy.

JPGPNGWEBPPDFSVGHEIC

Select PDF Document

or paste directly withCtrl + V

Your files stay strictly on your device • 100% Private

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What is Compress PDF?

Shrink large PDF documents for email and sharing with smart stream optimization. PixEnhance provides an editorial-grade, privacy-first interface designed to give creators, developers, photographers, and everyday users instant control over their digital media without registration, subscriptions, or watermarks.

Three compression presets: Extreme (~70%), Balanced (~50%), and Light (~30%)

Real-time file size comparison and savings percentage

Downsamples embedded images while preserving page layout

100% private: PDF data is processed strictly in your browser

How to Use Compress PDF

Upload your large PDF document.

Select your preferred compression level (Balanced recommended).

Click Compress PDF Document.

Download your optimized, smaller PDF.

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Supported File Formats

Directly processed via native browser canvas decoders:

PDF

Supports standard image files up to 50MB and 16,000 × 16,000 px resolution.

Complete Privacy Guarantee

Your photos and documents are processed with complete confidentiality. Your files stay strictly on your device, and are never stored, tracked, or shared.

100% Private • Fast • Free Forever

Frequently Asked Questions

PixEnhance optimizes embedded raster images and recompiles page streams using standard ISO PDF encoders directly in memory.

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