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cyberMEDIUM2026-04-22 16:28 UTC

Why I built a Zero-Server PDF Editor with React & pdf-lib (and skipped WASM)

The Privacy Bottleneck The objective: Zero data leakage. Files must never leave the local device. Engineering Decisions: Browser RAM vs. 500MB PDFs Large Bundle Sizes: Shipping full C++ or Rust binaries to the client adds overhead. Initialization Latency: Significant delays occur while the engine bo

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