Last Updated: September 25, 2025
Thank you for using PDF Reader (hereinafter referred to as “the App”). We value your privacy and the protection of your personal information. This Privacy Policy explains how we collect, use, store, and safeguard your data, as well as the rights you have when using the App. Please read this policy carefully before using the App.
If you have any questions or suggestions about this Privacy Policy, please contact us at qiuxiaolian39@gmail.com
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I. Information We Collect and Use
1. Device Information
To ensure the App functions properly, we may collect information such as your device model, operating system version, unique device identifiers, and network information (e.g., IP address). This data is solely used to optimize App performance, enhance user experience, and perform statistical analysis.
2. File Storage and Access
The core features of the App include scanning, managing, generating, and converting PDF files. To support these features, the App requires the permission android.permission.MANAGE_EXTERNAL_STORAGE (all files access).
This permission is strictly used for:
Reading and writing PDF files on your device;
Supporting batch operations to avoid repeated manual file selection;
Enabling document viewing, saving, exporting, and conversion.
We do not collect, upload, or share the content of your personal documents.
3. Advertising and Analytics
This App integrates with third-party advertising platforms, including TopOn, Vungle, UnityAds, IronSource, Pangle, Facebook, AdMob, AppLovin, and Chartboost, to deliver ads and keep the App free to use.
These platforms may collect device identifiers, location data (based on IP), usage preferences, and other information to provide personalized ads.
We also use Firebase for analytics and performance improvements. This data will not be used to personally identify you.
II. Children’s Privacy
This App is intended for users aged 13 and above.
We do not knowingly collect personal information from children under 13. If we discover a user under 13, we will promptly stop data collection and delete related information.
If you are a minor (13–18 years old), please use the App only with the consent and supervision of your guardian.
III. Information Storage and Security
1. Storage
Data generated by the App is primarily stored locally on your device.
Data related to advertising and analytics may be stored on the servers of third-party service providers.
2. Security
We implement reasonable security measures to prevent loss, misuse, unauthorized access, or disclosure of your information.
However, please note that due to risks inherent in the online environment, we cannot guarantee absolute data security.
IV. Your Rights
Access and Management: You can directly access, modify, or delete PDF files stored on your device.
Revoking Permissions: You may disable storage permissions or ad personalization settings at any time in your device settings. Please note that some features may not function properly if permissions are revoked.
Discontinuing Use: If you do not agree with this Privacy Policy, you may uninstall the App and stop using it at any time.
V. Third-Party Services
As the App integrates various advertising and analytics SDKs (as mentioned above), these service providers may collect and process some user data for purposes such as advertising and statistical analysis. Please note that these practices are governed by the privacy policies of the respective providers.
VI. Updates to This Privacy Policy
We may update this Privacy Policy to reflect feature changes or comply with legal requirements. Any updates will be clearly displayed in the App or on its store page. Please review the latest version of this Privacy Policy before continuing to use the App.
VII. Contact Us
If you have any questions or suggestions regarding this Privacy Policy or our data practices, you may contact us at:
Email: qiuxiaolian39@gmail.com