Last Updated: April 28, 2026
App Name: PDF Reader
Contact Email: lping0021@gmail.com
Welcome to PDF Reader (hereinafter referred to as "this App"). We attach great importance to the protection of your privacy and are committed to explaining, through this Privacy Policy, how we collect, use, store, and protect your information.
Before using this App, please carefully read and understand this Privacy Policy.
I. Information We Collect
During your use of this App, we may collect the following types of information:
1. Device and Log Information
To ensure the proper functioning of the App and to optimize the user experience, we may collect:
Device model, operating system version
Unique device identifiers (e.g., Android ID, Advertising ID)
App version information
Crash logs, performance data
2. File and Storage Data
The core function of this App is the reading and management of PDF files; therefore, we may access:
PDF files stored on your device
Basic file information, such as file names, paths, and sizes
Note: We will not upload the content of your files to our servers unless you actively utilize specific features (such as sharing). 3. Advertising-Related Information
To provide you with more relevant advertisements, our advertising partners may collect:
Advertising identifiers (e.g., GAID)
Device information
Ad interaction behaviors (clicks, impressions)
II. How We Use Information
The information we collect will be used for the following purposes:
To provide and optimize PDF reading and management features
To improve application stability and performance
To provide personalized advertising content
To prevent fraud and abuse
To enhance the product experience
III. Explanation of Permission Usage
This application may request the following permissions:
1. Storage Permissions
```xml
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />
```
Explanation of Permission Usage:
READ_EXTERNAL_STORAGE: To read PDF files stored on the device
WRITE_EXTERNAL_STORAGE: To save or edit PDF files
MANAGE_EXTERNAL_STORAGE: To access all files in order to enable file scanning, categorization, and management features
Note:
These permissions are used to enable core functionalities (file management and reading) and will not be used to collect data unrelated to these functions.
IV. Third-Party Services and SDKs
To enable advertising display and data analytics features, we have integrated the following third-party services:
1. Advertising Services
We have integrated with multiple advertising platforms, including but not limited to:
TopOn
Vungle
Unity Ads
IronSource
Pangle
Facebook Audience Network
AdMob
AppLovin
Mintegral
Chartboost
These advertising SDKs may collect device information and advertising identifiers for the purposes of ad delivery and optimization.
2. Data Analytics Services
We use Firebase to provide:
Application Analytics
Crash Reporting (Crashlytics)
Performance Monitoring
Firebase may collect device information, application usage data, and similar information.
V. Sharing and Disclosure of Information
We do not sell your personal information. We share information only under the following circumstances:
Sharing necessary data with advertising partners to facilitate ad delivery
Sharing data with Firebase to provide analytics services
When required by applicable laws, regulations, or government authorities
To protect the interests of users or the general public
VI. Data Storage and Security
We implement reasonable technical and administrative measures to protect your information:
Data encryption (where applicable)
Access control mechanisms
Measures to prevent unauthorized access
However, please understand that no environment on the Internet is absolutely secure.
VII. Child Privacy Protection (Ages 13 and Up)
This application is intended for users aged 13 and older.
We do not knowingly collect personal information from children under the age of 13.
If we discover that we have inadvertently collected such data, we will delete the relevant information as soon as possible.
If you are a guardian and discover that a child is using this application, please contact us to address the matter.
VIII. Your Rights
You have the right to:
Access or delete your data (where applicable)
Limit ad personalization (you may disable the advertising identifier within your device settings)
Uninstall the application to cease data collection
IX. Updates to the Privacy Policy
We may update this policy from time to time. We will notify you of any updates via the application or through on-screen prompts.
X. Contact Us
If you have any questions or suggestions regarding this Privacy Policy, please contact us via the following method:
📧 Email: lping0021@gmail.com
XI. Consent
By using this application, you acknowledge that you have read and agree to this Privacy Policy.