Effective Date: August 28, 2025
Contact: o.hmirine@gmail.com
Thank you for using PDF Viewer. We take user privacy and data security very seriously. This Privacy Policy details how we collect, use, store, and protect your information. By using this app, you agree to the terms of this Privacy Policy.
I. Information Collection
PDF Viewer may collect the following types of information:
1. Device and App Information
Device model, operating system version, and unique device identifier.
App usage, such as number of app launches, usage duration, and activity history.
2. Storage Permission Information
The app requests the `android.permission.MANAGE_EXTERNAL_STORAGE` permission to access, manage, and display PDF files on your device.
We will not upload or share your personal files without your permission.
3. Advertising and Analytics Information
We use advertising SDKs (including Vungle, UnityAds, Ironsource, Pangle, Facebook, Admob, AppLovin, Mintegral, and Chartboost) to display ads.
Ad SDKs may collect device information, interests, and ad interactions to deliver personalized ads.
We use Firebase to collect anonymous analytics data, such as app crash reports, feature usage statistics, and performance metrics, to improve the product experience.
II. Information Use
The collected information will be used for the following purposes:
1. Providing core app functionality, such as opening, viewing, and managing PDF files.
2. Displaying ads and providing personalized recommendations to optimize the ad experience.
3. Analyzing and improving app performance, resolving errors, and enhancing the user experience.
4. Ensuring app security and preventing fraud.
III. Information Sharing
We do not sell or rent your personal files or sensitive information to third parties.
Ad SDKs and Firebase may collect anonymous data for ad delivery and analytics purposes, but this data does not directly identify you.
IV. Children's Privacy
This app is not intended for children under 13 years of age and does not intentionally collect personal information from children under 13 years of age.
If you are under 13 years of age, please do not use this app. If we discover that we have inadvertently collected information from children under 13 years of age, we will immediately delete the data.
V. Permissions
1. Storage Permission (MANAGE_EXTERNAL_STORAGE)
Used to access and manage PDF files stored on the device.
Files are accessed only with explicit user consent; user content is not uploaded to servers.
2. Network Permission
Used for loading ads, Firebase analytics, and app updates.
3. Other Permissions
The app may request other necessary permissions based on functional requirements, which will be used only with user authorization.
VI. Advertising Policy
This app integrates with advertising platforms including Vungle, UnityAds, Ironsource, Pangle, Facebook, Admob, AppLovin, Mintegral, and Chartboost.
Ads may collect anonymous device information, ad interaction behavior, and interests to provide a personalized advertising experience. Users can manage ad personalization settings through their device settings or through the options provided by the ad SDK.
VII. Data Security
We implement reasonable technical and administrative measures to protect the security of your data.
However, the internet and mobile application environments cannot be guaranteed to be 100% secure, and therefore the risk of data leakage or unauthorized access cannot be completely eliminated.
VIII. User Rights
You have the right to access, modify, or delete the personal information we collect.
To exercise these rights, please contact us at o.hmirine@gmail.com, and we will process your request within a reasonable time.
IX. Privacy Policy Updates
This Privacy Policy may be updated from time to time. Users will be notified of any updates through in-app announcements or changelogs.
We recommend that you review this policy regularly for the latest information.
X. Contact Us
If you have any questions about this Privacy Policy or data usage, please contact us at o.hmirine@gmail.com