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Compress PDF (Lossy)
Reduce file size by recompressing images
This tool processes your files entirely in your browser. Your documents never leave your device.
Drag & drop PDF files here
or Browse Files
PDF, PDF•Max size: 100MB per file
Lossy compression converts pages to images. Text will no longer be selectable.
About This Tool
Compress PDF files significantly with our free online lossy PDF compressor. Reduce file sizes by up to 90% by recompressing embedded images, perfect for email attachments and web uploads while maintaining compatibility with Adobe Acrobat Reader.
Choose from quality presets (high, medium, low) to balance file size and image quality. Our compression algorithm targets the largest file size contributors—embedded images—while preserving text sharpness and vector graphics. Preview compression results before downloading.
All PDF compression happens locally in your web browser. Your documents never upload to external servers, ensuring complete privacy for business reports, presentations, and documents containing sensitive images. No registration, no file limits.
Perfect for reducing email attachment sizes, optimizing documents for web download, shrinking photo-heavy PDFs, or preparing files for upload to size-restricted systems. Works with all PDF files from Adobe Acrobat, Microsoft Office, and scanning applications. Note: Image quality will be visibly reduced at higher compression levels.
Frequently Asked Questions
- Is Compress PDF (Lossy) free?
- Yes, completely free with no hidden costs, subscriptions, or usage limits. All tools are available at no charge.
- Is it safe to use Compress PDF (Lossy)?
- Yes, 100% safe. All processing happens locally in your browser. Your files are never uploaded to any server and never leave your device.
- What is the maximum file size?
- You can process files up to 100MB. Since everything runs in your browser, processing speed depends on your device.