Show HN: Cachety – Watermark ID documents in the browser, nothing is uploaded

Category: security

Tags: privacy, document-processing, client-side, pdf, watermarking, security

Score: 7.5/10 (Innovation: 6, Technical: 7, Documentation: 9, Utility: 8)

Cachety is a browser-based tool that watermarks and signs PDFs and images entirely client-side, ensuring sensitive documents never leave the user's device. It combines robust privacy guarantees, extensive features like batch processing and password protection, and thorough documentation with multi-language support and practical guides.

Target audience: privacy-conscious individuals, professionals handling sensitive documents, and organizations needing secure document workflows

Repository: https://cachety.com · TypeScript · AGPL-3.0 · 6 stars

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