Privacy Policy for “PDFViewer - Master”
The developer of PDFViewer - Master (“we,” “our,” or “us”) respects your privacy and is committed to protecting your personal information. This Privacy Policy explains how we collect, use, store, and protect your information when you use the PDFViewer - Master mobile application (the “App”).
By using the App, you agree to the collection and use of information in accordance with this Privacy Policy.
1. Information We Collect
We collect limited information only as necessary to provide and improve the App’s functionality.
1.1 Device Information
We may collect certain non-personal information about your device, including but not limited to:
Device model
Operating system version
Application version
Unique device identifiers (such as advertising ID, where permitted by law)
Language and region settings
This information is used to ensure compatibility, improve stability, and provide technical support.
1.2 Usage Data
We may collect information about how you interact with the App, such as:
Feature usage and interaction patterns
App performance data (e.g., crashes, loading times)
General usage statistics
This data is collected in an aggregated or anonymized form and is used solely to improve user experience and optimize App performance.
1.3 Files and Content
PDFViewer - Master processes PDF files and related documents locally on your device.
We do not upload, store, or access your document content on our servers.
We do not read, analyze, or share the content of your files.
2. How We Use Your Information
We use the collected information for the following purposes:
To operate and maintain the App
To improve features, usability, and performance
To diagnose technical issues and fix bugs
To understand general user behavior through anonymous analytics
We do not use your information for targeted advertising or profiling.
3. Data Sharing and Disclosure
We take your privacy seriously and limit data sharing to the minimum required.
We do not sell, rent, or trade your personal information to third parties.
We do not share your personal data with third parties without your consent, except where required by law.
3.1 Service Providers
We may share aggregated and anonymized data with trusted third-party service providers (such as analytics or crash reporting services) solely to help us improve the App.
These partners are contractually obligated to protect your data and use it only for the specified purposes.
4. Data Security
We implement reasonable and industry-standard security measures to protect your information from unauthorized access, loss, misuse, alteration, or disclosure.
However, please note that no method of electronic transmission or storage is completely secure. While we strive to protect your data, we cannot guarantee absolute security.
5. Children’s Privacy
PDFViewer - Master is not intended for children under the age of 13.
We do not knowingly collect personal information from children under 13.
If you believe that a child has provided personal information through the App, please contact us immediately. We will promptly take steps to delete such information.
6. Your Rights and Choices
Depending on your location and applicable laws, you may have the right to:
Access your information
Request correction or deletion of your information
Withdraw consent where applicable
To exercise these rights, please contact us using the email address below.
7. Changes to This Privacy Policy
We may update this Privacy Policy from time to time to reflect:
Changes in App functionality
Legal or regulatory requirements
Improvements in our data practices
If we make material changes, we will notify you through the App or other appropriate means. Continued use of the App after updates constitutes acceptance of the revised Privacy Policy.
8. Contact Us
If you have any questions, concerns, or requests regarding this Privacy Policy or your data, please contact us at:
Email: zgmengjie@gmail.com
By using PDFViewer - Master, you acknowledge that you have read and understood this Privacy Policy and agree to its terms.