Last Updated: July 10, 2026
1. Introduction
Welcome to Luminix PDF! We are committed to providing you with an efficient and convenient PDF document management and editing experience while placing high priority on your privacy. This Privacy Policy explains how we collect, use, store, share, and protect your information when you use our app, and informs you of your related rights.
Please read and understand this policy before using the app. Your continued use signifies your agreement to its contents.
2. Information We Collect
To provide core features, optimize the product experience, and support the app's free operation (including advertising services), we collect the following information under the principles of legality, legitimacy, and necessity:
2.1 Information Required for Core App Functionality
• Documents on Your Device: To enable PDF file listing, viewing, previewing, editing, sorting, searching, deleting, renaming, sharing, recent viewing, favorites, scan-to-PDF, image-to-PDF, split PDF, merge PDF, lock/unlock PDF, multi-language switching, onboarding flow, and other features, this app requires access to relevant documents in your device storage. All document processing is performed locally on your device. We do not collect, store, or upload your document content.
• File Management Permission: This permission is fundamental for all document management features, used to read, manage, save, and process your documents.
• Foreground Process Permission: To ensure the app can stably and promptly handle document operations while running in the foreground, we require this permission.
2.2 App Performance Optimization and Analytics
• Device and Log Information: To improve compatibility, stability, and performance, we collect anonymized device information, crash logs, and in-app interaction data. This information is processed and cannot directly identify you personally.
2.3 Information for Advertising Services
To support free operation and display relevant ads, we and our advertising partners may collect and use:
• General location information
• IP address
• Android Advertising ID (AAID) or similar device identifier
You can reset your advertising identifier or manage ad personalization preferences in your device's system settings.
3. How We Use Information
• Service Provision & Maintenance: Use file management and foreground process permissions to operate all document processing features and ensure stable performance.
• Product Optimization: Use crash logs and device information to diagnose issues and fix bugs.
• Analytics & Improvement: Use anonymized interaction data to analyze usage patterns and improve product design (e.g., onboarding optimization, multi-language adaptation).
• Advertising Services: Use location, IP, and device identifiers for ad delivery, personalized recommendations, and performance measurement.
4. Storage and Sharing of Information
• Local Storage Principle: All your document data is stored locally on your device. We do not upload or store your file contents on our servers.
• Transmission of Anonymous Information: Processed anonymous data (e.g., crash reports, aggregated analytics) may be encrypted and transmitted to our secure servers or third-party analytics providers we engage.
• Advertising Partners: We may share the information described in Section 2.3 with trusted third-party advertising platforms (e.g., Google AdMob). These partners are obligated to protect your information and comply with relevant data protection regulations; their practices are governed by their own privacy policies.
• User-Initiated Sharing: When you use the "Share" feature, files are sent directly to your chosen app, governed by the receiving app's privacy policy.
5. Third-Party Services
This app integrates third-party advertising SDKs (e.g., Google AdMob) to support free operation. Such SDKs may collect device information for ad serving. We encourage you to review the privacy policies of our advertising partners. Beyond advertising and analytics, the app contains no other third-party SDKs.
6. Data Security
We employ reasonable technical and administrative measures to protect collected information from loss, misuse, and unauthorized access, disclosure, alteration, or destruction. However, no method of internet transmission or electronic storage is 100% secure.
7. Your Rights
• Document & Permission Control: Manage documents in-app or via device file manager; grant or revoke file management and foreground process permissions anytime in device app settings.
• Ad Personalization Control: Reset AAID or turn off "Ad Personalization" in device system settings to limit interest-based ads.
• Stop Using: Uninstall the app to stop all data collection. Upon uninstallation, all local associated data will be cleared.
8. Children's Privacy
This app is not directed at children under 13 (or the higher age per your jurisdiction). We do not knowingly collect children's personal information. If a parent or guardian believes their child has provided us information, please contact us and we will promptly delete it.
9. Changes to This Privacy Policy
We may update this policy from time to time. The new version will be posted in-app or on the distribution page with an updated "Last Updated" date. Continued use signifies acceptance of the updated policy.
10. Contact Us
If you have any questions or concerns, please contact:
• Developer: Luminix PDF Team
• Email: arrapacksllp2026@gmail.com