"LuminPDF presents a high-risk privacy profile (score: 78/100) comparable to mainstream ad-supported platforms like Spotify. The service collects extensive sensitive data including financial information, biometric identifiers, geolocation, and document content, which is shared broadly with advertising networks, cloud providers, and AI services (OpenAI, Google Gemini), with international transfers to regions with weaker privacy protections. Particularly concerning are the comprehensive third-party ad tracking practices, indefinite retention of files in shared circles even after account deletion, and vague retention policies for most data types."
luminpdf Privacy Concerns & Scorecard
Data transferred internationally to US and New Zealand where privacy protections may not be equivalent. Payment processor Stripe may access data and use it for own purposes including marketing emails.
Extensive collection of sensitive data including financial details, biometric identifiers, geolocation, contacts, and document content. Payment information collected directly and via Stripe. PDF documents and all edits/annotations are collected and processed by third-party AI services.
Comprehensive cross-site behavioral tracking using multiple methods including third-party cookies, device identifiers, location data, and clear GIFs. Email addresses matched against third-party advertising networks for targeted ad delivery.
Policy contains vague language and incomplete sections. Section 5.1.3 appears to cut off mid-sentence. No clear commitment to breach notification. Policy changes can occur without advance notice.
Data retention periods are vague for most data types. Business transaction data retained for 10 years after last interaction. Files in circles are retained indefinitely even after account deletion.
No recommended actions at this time.
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Data Collection & Tracking
Personal Information Collected
Account creation, communication, billing, and advertising matching
Payment processing and billing
Service delivery and AI-powered workflow improvements
Service localization, compliance, and advertising targeting
Service functionality, analytics, security, and device fingerprinting
Analytics, advertising, and service improvement
Feature functionality and potential advertising matching
Authentication or device access (not fully specified in policy)
Customer support and service improvement
Cross-Platform Tracking
LuminPDF tracks users across the web through third-party cookies, advertising pixels, and device identifiers shared with ad networks and social media platforms. Email addresses are matched against third-party advertising networks to enable behavioral targeting and retargeting across sites.
Tracking Methods:
First-Party Cookies
Cookies set by LuminPDF on its own domain to remember user preferences and track session activity
Third-Party Cookies
Cookies set by advertising networks and ad servers to track user behavior across multiple websites for targeted advertising
Tracking Pixels
Clear GIFs and pixels embedded in pages to measure ad effectiveness and track user actions across sites
JavaScript Tracking
JavaScript code to capture user interactions, browsing patterns, and device information
Device Identifiers
Unique device identifiers used for cross-device tracking and to link user activity across platforms
Terms of Service Updates
Electronic Signature Indemnity Language Completed
Section 5.1.4 in the new version completes the previously truncated indemnity clause. The old version ended mid-sentence ('...using the electronic signature functio'), while the new version provides the full text ('...functionality of the Service'). This clarifies users' complete responsibility for legal requirements and indemnification obligations related to electronic signatures.
Effective: August 20, 2026
AI & Data Training
luminpdf uses your content to train AI
Below is what's used and how (if at all) you can object.
What Content Is Used
PDF Documents and Content
User PDF documents and content are processed by OpenAI and Google Gemini for workflow improvements
How to Object
No opt-out available
This service does not currently provide a public way to opt out of AI training.
Why We Analyzed luminpdf
TrueTerms automatically audits privacy policies and data practices using advanced machine learning to keep you informed and protected. This scorecard is based on the latest available public terms of service and privacy policies as of 2026.