Reduce PDF file size while maintaining quality - Fast, Free & Secure
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Compress your PDF files in seconds with our optimized algorithm
All processing happens in your browser. Your files never leave your device
Reduce file size up to 90% while maintaining excellent PDF quality
No subscriptions, no hidden fees. Compress unlimited PDFs for free
PixelWebP's free PDF compressor uses advanced optimization algorithms to reduce PDF file size by up to 90% while maintaining exceptional document quality. Our online PDF compressor provides three intelligent compression levels - Low for minimal size reduction with maximum quality preservation, Medium for balanced compression recommended for most documents, and High for maximum file size reduction perfect for email attachments and web uploads. Whether you need to compress PDF files for faster email transmission, cloud storage optimization, website loading speed, or meeting file size restrictions, our tool delivers professional results instantly.
Unlike basic PDF compression tools, our browser-based solution ensures complete privacy and security - all PDF processing occurs locally in your browser using the pdf-lib JavaScript library, meaning your sensitive documents never upload to external servers. The PDF optimizer intelligently removes unnecessary metadata, optimizes internal structures, and applies smart compression techniques while preserving text clarity, image quality, and document formatting. Real-time progress tracking shows compression status, and detailed statistics display original size, compressed size, percentage reduction, and actual bytes saved.
Perfect for professionals compressing PDFs online for business reports, contracts, presentations, and proposals. Students reducing assignment file sizes for email submission, photographers optimizing portfolio PDFs, designers preparing print-ready files, businesses meeting email attachment limits, and anyone needing to shrink PDF documents for faster sharing and storage. Our PDF file reducer handles unlimited compressions with no file size restrictions, supports multi-page documents, maintains PDF standards compliance, and works seamlessly across all devices and operating systems.
All PDF compression processing happens entirely in your browser using client-side JavaScript - your confidential documents, sensitive contracts, financial statements, or personal files never transmit to servers, ensuring complete data privacy and security. Whether you need to compress PDF online for a quick email attachment, reduce large scanned documents for archival, optimize website PDFs for faster loading, or meet strict file size requirements for upload portals, our free tool delivers professional-quality compression instantly. No registration required, no software download needed, unlimited compressions, works offline after initial page load, and provides instant download with automatic "_compressed" filename suffix for easy organization.