Choose smaller visual output or lossless document optimization.
Reduce PDF file size for easy sharing via email or upload. Everything runs in your browser — your files are never uploaded to any server.
Free users limited to 10MB files. Upgrade for 100MB files & batch
Our PDF compressor offers three honest modes. Balanced and Maximum rebuild pages as optimized images for meaningful reductions on scans and image-heavy documents; Lossless optimizes object streams while preserving selectable text, links, and forms. If an attempted result is larger, the original bytes are kept instead. For best results, compress PDF online free before sharing large attachments, as smaller files transfer faster and use less storage. Whether you are reducing scan quality or optimizing a presentation, this tool helps you make a smaller PDF while preserving readability. Since everything runs client-side, your files never leave your device, ensuring complete privacy and security.
Combine page organization, e-signing, a PII privacy preview, watermarks, and compression in one continuous session.