By George Curta ·
anonym.legal vs Redact PDF AI
Redact PDF AI uploads your documents to Microsoft Azure for processing — meaning their servers can read your plaintext files. anonym.legal processes your text on its own servers in Germany rather than handing it to a third-party cloud, so your documents stay with one provider under one jurisdiction.
Learn more about Redact PDF AI
Feature Comparison
| Feature | anonym.legal | Redact PDF AI |
|---|---|---|
| Data Residency | Yes | Microsoft Azure (EU regions available) |
| Encryption Model | Yes | HTTPS in transit only |
| Provider Can Read Plaintext | Yes | Yes — plaintext uploads |
| Data Retention | Yes | 30 days |
| No Transfer To A US Cloud Provider | Yes | No |
| CLOUD Act Exposure | Yes | Yes (Microsoft / US jurisdiction) |
| Pricing | Free to €29/mo | $50–$250+/month |
| Entity Types | 273 | Not documented |
| Language Support | 48 languages | Not documented |
| Reversible Encryption | AES-256-GCM | No |
| Detection Method | Yes | Proprietary AI (non-deterministic) |
| Audit Trail | Yes | Not found |
| Desktop App | Yes | No |
| ISO 27001 | Yes | Not found |
Comparison based on publicly available information. "Not found" indicates feature not documented on product page. Last updated February 2026.
Why Choose anonym.legal
Hetzner Germany — PII Processing in Germany
All processing runs on ISO 27001-certified servers in Germany. PII is processed on anonym.legal's own German servers rather than being passed to a US cloud provider. Redact PDF AI uses Azure infrastructure subject to CLOUD Act jurisdiction.
Your Keys Stay On Your Device
Your account key is derived in your browser or desktop app with Argon2id and never sent to us, so the vault holding your keys and saved history is unreadable to us. Text you submit for anonymization is processed on our own German servers rather than handed to a third-party cloud — Redact PDF AI uploads it to Azure.
No Transfer To A US Cloud Provider
Under Schrems II, transfers to providers who can access plaintext need additional safeguards under GDPR Article 44. anonym.legal processes on its own servers in Germany instead of transferring to a US cloud. Redact PDF AI uploads to Azure.
Nothing Kept Unless You Ask
Processed text is not stored unless you switch on history — and then it is stored encrypted and you can delete it. Redact PDF AI retains uploaded documents for 30 days on Azure servers.
273 Entity Types, 48 Languages
Deterministic 3-layer NLP (Presidio + spaCy + XLM-RoBERTa) with per-entity confidence scoring and full audit trail. Not proprietary black-box AI.
Transparent Pricing
Free tier + €3–€29/month. Redact PDF AI charges $50–$250+/month with no free tier.
When anonym.legal is the right choice
anonym.legal is the better fit when:
- You handle documents subject to GDPR, BDSG, NIS2, or HIPAA and need Schrems II-compliant processing
- Your legal team requires a data processor that is architecturally prevented from reading your content
- You need reversible encryption — decrypt anonymized data for audits or court orders
- You process documents in 48 languages, not just English
- Budget matters — transparent pricing up to 10× lower than Redact PDF AI
Frequently Asked Questions
Does Redact PDF AI comply with Schrems II and GDPR Article 44?
Redact PDF AI uploads documents to Microsoft Azure for processing, meaning Azure infrastructure has access to plaintext files. Under Schrems II (ECJ C-311/18), transfers to US providers who can access data in plaintext are incompatible with GDPR Article 44 without additional safeguards. anonym.legal keeps the anonymization itself on its own infrastructure in Germany rather than handing the documents to a US provider.
What is the CLOUD Act and why does it matter for PDF redaction?
The US CLOUD Act (2018) allows US law enforcement to compel US cloud providers to disclose data regardless of where it is stored. Data uploaded to Azure (Microsoft, a US company) is subject to CLOUD Act jurisdiction even if stored in EU regions. anonym.legal uses Hetzner, a German company on German infrastructure, and zero-knowledge encryption that prevents any party from accessing plaintext.
How long does Redact PDF AI retain uploaded documents?
Redact PDF AI retains uploaded documents for 30 days on Azure servers. anonym.legal has zero data retention — processed data is not stored on our servers. Users can delete their data at any time via the account dashboard.
Does anonym.legal support reversible redaction that Redact PDF AI lacks?
Yes. anonym.legal replaces PII with encrypted placeholders. The original data can be restored by anyone with the decryption key — useful for legal audits, court-ordered disclosure, or internal review. Redact PDF AI permanently removes detected content with no recovery option.
How does detection accuracy compare?
anonym.legal uses a deterministic 3-layer NLP pipeline: Presidio (rule-based), spaCy/Stanza (statistical NLP), and XLM-RoBERTa (transformer models). Results are reproducible and auditable with per-entity confidence scores. Redact PDF AI uses proprietary AI that produces non-deterministic results. The same document may yield different redactions on successive runs, which is problematic for compliance documentation.
PDF Anonymization
Built for GDPR. Hetzner Germany. Reversible encryption. Free to start.