ChatPDF

Chat with any PDF document using AI to extract answers and insights

Luminance

AI contract intelligence platform

ChatPDF

Moderate

16/25

Luminance

Excellent

23/25

Score Breakdown

DimensionChatPDFLuminance

Data Residency

Where is your data stored and processed?

ChatPDF: EU-based servers in Germany. Documents processed within the EU. Strong data residency posture for European users.

Luminance: UK/EU hosting with customer choice; on-premise available

4/5

EU-based servers in Germany. Documents processed within the EU. Strong data residency posture for European users.

5/5

UK/EU hosting with customer choice; on-premise available

Legal Jurisdiction

Which laws govern the company and your data?

ChatPDF: German company under EU/GDPR jurisdiction. Not subject to US CLOUD Act. Strong legal framework for data protection.

Luminance: UK-incorporated company under English law

4/5

German company under EU/GDPR jurisdiction. Not subject to US CLOUD Act. Strong legal framework for data protection.

5/5

UK-incorporated company under English law

Data Retention & Training

Is your data used for model training?

ChatPDF: Uploaded documents are not used for model training. Files reportedly deleted after processing. Reasonable retention practices.

Luminance: Zero data used for training; complete client data isolation

3/5

Uploaded documents are not used for model training. Files reportedly deleted after processing. Reasonable retention practices.

5/5

Zero data used for training; complete client data isolation

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

ChatPDF: No SOC 2 or ISO 27001 certifications publicly disclosed. Small team without formal compliance programme, though GDPR-compliant by jurisdiction.

Luminance: SOC 2 Type II, ISO 27001, Cyber Essentials Plus

2/5

No SOC 2 or ISO 27001 certifications publicly disclosed. Small team without formal compliance programme, though GDPR-compliant by jurisdiction.

4/5

SOC 2 Type II, ISO 27001, Cyber Essentials Plus

Regulatory Fit

Suitability for regulated industries and professional services

ChatPDF: EU jurisdiction and data residency provide a strong baseline for GDPR compliance. Suitable for European organisations with document privacy requirements.

Luminance: SRA and FCA suitable; used by regulated law firms and financial institutions

3/5

EU jurisdiction and data residency provide a strong baseline for GDPR compliance. Suitable for European organisations with document privacy requirements.

4/5

SRA and FCA suitable; used by regulated law firms and financial institutions

Total Score

16/25

23/25

Best For

ChatPDF

Best for EU-headquartered organisations needing maximum data sovereignty; teams on a tight budget.

Luminance

Best for EU-headquartered organisations needing maximum data sovereignty; organisations requiring broad certification coverage (SOC 2 Type II, ISO 27001, Cyber Essentials Plus); regulated industries (SRA, FCA); privacy-conscious teams who need strong data retention controls; organisations that need self-hosted or on-premise deployment; enterprises requiring SSO integration.

Detailed Comparison

ChatPDF vs Luminance: Trust & Compliance Comparison

ChatPDF (ChatPDF, DE) scores 16/25 overall with a Bronze (Moderate) trust badge. Chat with any PDF document using AI to extract answers and insights. Luminance (Luminance Technologies Ltd, GB) scores 23/25 with a Gold (Excellent) trust badge. AI contract intelligence platform.

Dimension-by-Dimension Breakdown

#### Data Residency

Luminance leads with 5/5 vs 4/5.

●ChatPDF (4/5): EU-based servers in Germany. Documents processed within the EU. Strong data residency posture for European users.

●Luminance (5/5): UK/EU hosting with customer choice; on-premise available

#### Legal Jurisdiction

Luminance leads with 5/5 vs 4/5.

●ChatPDF (4/5): German company under EU/GDPR jurisdiction. Not subject to US CLOUD Act. Strong legal framework for data protection.

●Luminance (5/5): UK-incorporated company under English law

#### Data Retention & Training

Luminance leads with 5/5 vs 3/5.

●ChatPDF (3/5): Uploaded documents are not used for model training. Files reportedly deleted after processing. Reasonable retention practices.

●Luminance (5/5): Zero data used for training; complete client data isolation

#### Certifications

Luminance leads with 4/5 vs 2/5.

●ChatPDF (2/5): No SOC 2 or ISO 27001 certifications publicly disclosed. Small team without formal compliance programme, though GDPR-compliant by jurisdiction.

●Luminance (4/5): SOC 2 Type II, ISO 27001, Cyber Essentials Plus

#### Regulatory Fit

Luminance leads with 4/5 vs 3/5.

●ChatPDF (3/5): EU jurisdiction and data residency provide a strong baseline for GDPR compliance. Suitable for European organisations with document privacy requirements.

●Luminance (4/5): SRA and FCA suitable; used by regulated law firms and financial institutions

Certifications at a Glance

Certification	ChatPDF	Luminance
Cyber Essentials Plus	No	Yes
ISO 27001	No	Yes
SOC 2 Type II	No	Yes

Overall Verdict

Luminance has a clear trust advantage, scoring 23/25 compared to ChatPDF's 16/25. Luminance particularly excels in data residency, legal jurisdiction, data retention & training, certifications, regulatory fit.

Frequently Asked Questions

Which is better for EU compliance, ChatPDF or Luminance?

ChatPDF has a TrustKit score of 16/25 while Luminance scores 23/25. Luminance currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do ChatPDF and Luminance compare on data residency?

ChatPDF scores 4/5 for data residency (EU-based servers in Germany. Documents processed within the EU. Strong data residency posture for European users.), while Luminance scores 5/5 (UK/EU hosting with customer choice; on-premise available).

Are ChatPDF and Luminance GDPR compliant?

Both tools are assessed across five compliance dimensions. ChatPDF has a regulatory fit score of 3/5 and Luminance scores 4/5. Check the full comparison above for a detailed breakdown.

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