Show HN: Check if a PDF's redactions can be undone, in the browser

Category: security

Tags: pdf, redaction, privacy, security, browser-tool

Score: 6.7/10 (Innovation: 6, Technical: 7, Documentation: 4, Utility: 7)

A browser-based tool that checks whether PDF redactions are truly removed or merely covered by black boxes, revealing hidden text. It addresses a common security and privacy gap in document sanitization, with a companion Mac app for proper redaction.

Target audience: privacy-conscious users, legal professionals, journalists, security researchers

Repository: https://blurdata.app/redaction-checker

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