Remote File Control Without Cloud

Published: January 15, 2025 | Updated: December 03, 2025

Lightweight Sharing of Locally Encrypted PDFs

Why Choose "Offline Storage + Online Authorization"?

Traditional Cloud Storage: Data stays with third parties, high compliance pressure.
Pure Local Encryption: Once sent, it's out of control, cannot be revoked.
Professional DRM Platforms: Complex deployment, high costs.

PDFs are encapsulated into a single HTML file, easily copied to USB drives or private NAS.

Background handshake upon opening: verifies reading code, remaining uses, and expiration date. Offline → direct denial of launch.

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