Legal Document Redaction
privacyhub.legal vs Redact PDF AI — Legal Comparison
Law firms and legal departments need precision redaction with audit trails, reversibility for privilege review, and compliance with HIPAA, FOIA, and Federal Rules of Civil Procedure.
Feature-by-Feature Comparison
Data verified March 2026 from Redact PDF AI public documentation.
| Feature | privacyhub.legal | Redact PDF AI |
|---|---|---|
| Entity Types | 285+ (PII, PHI, financial, government IDs) | ~8 categories (Person, Email, PhoneNumber, Address, Organization, Date, IBAN, CreditCard) |
| Languages | 48 (dedicated NLP per language) | 100+ (OCR-based, no NER per language) |
| Detection Engine | spaCy + Stanza + XLM-RoBERTa + regex | AI + OCR + regex patterns |
| Platforms | Web, Desktop, Office, Chrome, LibreOffice, MCP, API (7) | Web app, REST API (2) |
| Zero-Knowledge | Yes (Argon2id + AES-256-GCM, server never sees data) | No (server processes documents in plaintext) |
| Reversible Encryption | Yes — decrypt with original key | No — irreversible pixel burn only |
| Free Tier | 200 tokens/month, no credit card | 5-page demo (first page only) |
| Paid Plans | Basic €3/mo, Pro €15/mo, Business €29/mo | Starter $50/mo, Business $250/mo |
| Offline Mode | Yes (Desktop App, air-gapped) | No (cloud-only) |
| File Formats | PDF, DOCX, XLSX, CSV, TXT, JSON, Images | PDF, DOCX, XLSX, JPG, PNG |
| HIPAA Safe Harbor | 18 PHI identifier types detected per 45 CFR 164.514(b) | Generic health data detection (no Safe Harbor methodology) |
| FOIA Compliance | Exemption-aware redaction with audit logging | No FOIA-specific features |
| e-Discovery | Reversible encryption preserves originals for privilege review | Irreversible — originals destroyed by pixel burn |
| Redaction Reversibility | Yes — AES-256-GCM decrypt with original key | No — permanent pixel burn, no recovery |
| Document Formats | PDF, DOCX, XLSX, CSV, TXT, Images, JSON | PDF, DOCX, XLSX, JPG, PNG |
| Audit Trail | Full processing log with confidence scores per entity | Job status tracking only |
Why Choose privacyhub.legal
- Reversible encryption — critical for e-Discovery privilege review. Redact PDF AI permanently destroys data with no recovery option
- HIPAA Safe Harbor — detects all 18 PHI identifiers per 45 CFR 164.514(b). Redact PDF AI has no Safe Harbor methodology
- Zero-knowledge — attorney-client privilege protected architecturally. Server never sees document contents
- Confidence scores — defend redactions in court with per-entity detection confidence. Critical for FRCP compliance
- Office Add-in — redact directly in Word/Excel without leaving the application
Caviard.ai (Sister Product) Comparison
Redact PDF AI's parent company also operates Caviard.ai, a free Chrome extension that redacts PII in ChatGPT and DeepSeek prompts. Here's how it compares to the anonym.legal Chrome Extension.
| Feature | anonym.legal Chrome Extension | Caviard.ai |
|---|---|---|
| AI Platforms | ChatGPT, Perplexity, Claude, Gemini, DeepSeek | ChatGPT, DeepSeek |
| Entity Types | 285+ | 100+ (regex-based) |
| Detection Engine | Hybrid NLP (spaCy/Stanza/XLM-R) + regex | Regex patterns only |
| Processing | Server-side NLP (zero-knowledge encrypted) | Local browser-only |
| File Anonymization | Yes — anonymize files before upload | No — text prompts only |
| Reversibility | Yes — AES-256-GCM decrypt | Toggle only (Alt+R) — session-based, not persistent |
| Languages | 48 with NLP | Multiple (regex-based, no NLP) |
| Pricing | Free tier (200 tokens/mo) | Free |
Pricing Comparison
| Plan | anonym.legal | Redact PDF AI |
|---|---|---|
| Free | 200 tokens/month, no credit card | 5-page demo (first page only) |
| Entry | Basic: €3/month (1,000 tokens) | $5 prepaid (20 pages, 30-day expiry) |
| Mid | Pro: €15/month (4,000 tokens) | Starter: $50/month (1,000 pages) |
| Business | Business: €29/month (10,000 tokens) | Business: $250/month (6,000 pages, 3 seats) |
| Enterprise | Custom | Custom |