Intelligent PDF Stream & Target Optimizer
Adaptive multi-pass binary convergence engine that compresses embedded scans, raw RGB bitmaps, and bloated metadata to hit exact target limits (<100KB, <200KB, <2MB) with zero blurry text artifacts.
100% Private & Client-Side
Your files are processed directly on your computer or phone. They are never uploaded to any remote server or stored anywhere.
Upload or drag & drop your files
Files are processed directly in your browser. Supported: .pdf, application/pdf
Browse DeviceIteratively optimizes scans and streams to stay strictly below this limit.
How to use Intelligent PDF Stream & Target Optimizer
Upload or drop your PDF document.
Select your compression level (Recommended, Extreme, or Light).
Click 'Compress PDF' and download your lightweight document instantly.
Frequently Asked Questions
How does Hearthhammer compress PDFs without uploading?
Unlike traditional sites that upload your confidential documents to cloud servers, Hearthhammer runs WebAssembly in your browser to optimize object streams, strip bloated XML metadata, and downsample embedded scans directly on your device.
Can I compress PDFs for government portals or job applications?
Yes! Choose between Recommended (balanced for web), Extreme (maximum size reduction under 100KB/200KB for application portals), or Light compression.
Will text become blurry?
No. Vector text, digital signatures, and typography remain 100% sharp and crisp because vector paths are preserved mathematically.