Last Updated: [2026.9.16]
Thank you for choosing to use our app, Document Reader - PDF Editor. By choosing to use our services, you consent to the collection and use of information described in this policy. We will not use or share your personal information with anyone, except as otherwise described in this Privacy Policy.
This Privacy Policy explains how we collect, use, store, and protect your personal information, and clarifies your rights as a user. Please read the following carefully.
1. Collection and Use of Personal Information
To provide and improve our services, we may collect the following types of personal information:
Basic Information
We may collect your basic personal information, including but not limited to your name and email address. This information is primarily used to understand your needs and provide you with the best user experience.
Device Information
When you use the App, we may collect device-related information, including device type, model, operating system version, and unique device identifiers. This helps us understand the type of device you are using so that we can provide services and features more tailored to users on different devices.
Usage Data
To optimize the App and provide a better user experience, we automatically receive and record information generated during your App usage, such as your IP address, browser type, language preference, access time, and frequency of feature usage. This data helps us understand user habits and behaviors for analysis and continuous service improvement.
File Information
When you use the App to upload, open, view, or edit PDF files(collectively, "Files"), we may process and temporarily store those files to provide the requested functionality. We do not use your documents for training, analysis, or sharing with other users.
Log Data
When you use the App, in the event of an error, we (or third-party service providers) may automatically collect data and information from your device, referred to as "Log Data." Log Data may include your device's IP address, device name, operating system version, app configuration at the time of use, timestamps, and other statistical information.
Cookies and Similar Technologies
The App itself does not actively use Cookies. However, third-party code or libraries integrated into the App may use Cookies to collect information and improve their services. You may choose to accept or decline these Cookies. If you decline, some features of the App may not be available.
2. How We Use the Information Collected
We may use the collected personal information for the following purposes:
•Creating and managing your account and profile, and ensuring secure access;
•Managing your use of the App and improving our services;
•Better understanding your needs and interests;
•Personalizing and enhancing your experience;
•Delivering software updates and product announcements;
•Monitoring and analyzing App usage to improve technical performance.
If you no longer wish to receive communications from us, you may follow the unsubscribe instructions in those communications or contact us at the email address listed below.
We only disclose personally identifiable information to employees, contractors, and affiliates who (i) need to know that information in order to process it or provide services on our behalf, and (ii) have agreed not to disclose it to others. These parties may be located outside your country; use of the App constitutes your consent to such transfer.
Other Legitimate Uses
Product Development: Anonymized data may be used for statistical analysis to guide new feature development or market strategy.
Third-Party Service Integration: With your consent, we may share necessary data with partners (such as payment providers) to implement specific features.
Communications: When you contact us, we may retain those communications to assist in resolving your issue. We may occasionally send you emails about new features, feedback requests, or App updates.
International Data Processing: The App may process personal information on servers located in multiple countries. Your personal information may therefore be processed outside your country of residence.
Data Retention: Where feasible, we provide access to and correction of your information at no charge. After deletion, residual copies may remain on existing servers or in backup systems for a limited period.
3. Data Security and Storage
To ensure the security of your personal information, we have implemented a series of stringent protection measures, including:
•Use of encryption technology to protect your information from unauthorized access;
•Access permission controls to restrict data access to authorized personnel only;
•Storage of your data on secure servers equipped with advanced security measures;
•Monitoring of all access to your data to prevent unauthorized use or corruption.
Please note that no method of Internet transmission or electronic storage is 100% secure. While we strive to use commercially acceptable means to protect your personal information, we cannot guarantee its absolute security.
4. Use of Third-Party Services
To support our services, we may engage third-party companies and individuals to facilitate the App, provide services on our behalf, perform App-related tasks, or assist us in analyzing how the App is used. These third parties may have access to your personal information solely to perform their assigned tasks and are obligated not to disclose or use it for any other purpose.
The App integrates the following third-party services. We encourage you to review their respective privacy policies:
Google Firebase
Firebase is a mobile and web application development platform provided by Google LLC. We use Firebase for the following purposes:
•Firebase Analytics: collects anonymized usage data and in-app events to help us understand user behavior and improve the App;
•Firebase Crashlytics: automatically collects crash reports and device diagnostic data when the App encounters an error, helping us identify and fix stability issues;
Privacy Policy: https://firebase.google.com/support/privacy
Google AdMob
AdMob is an advertising platform provided by Google LLC. We use AdMob to display advertisements within the App. AdMob may collect device identifiers, IP address, and usage data to serve personalized or non-personalized ads based on your settings and regional requirements (e.g., GDPR, COPPA).
We do not sell your personal information to advertisers. Advertising revenue helps us maintain and improve the App free of charge.
Privacy Policy: https://support.google.com/admob/answer/6128543
AppsFlyer
AppsFlyer is a mobile attribution and marketing analytics platform. We use AppsFlyer to measure and analyze App installs, in-app events, and the effectiveness of our marketing campaigns. AppsFlyer may collect device identifiers (such as IDFA or GAID), IP address, and in-app event data for attribution purposes.
AppsFlyer processes data in accordance with applicable privacy regulations and provides user opt-out options through its privacy center.
Privacy Policy: https://www.appsflyer.com/legal/services-privacy-policy/
The App may also contain links to other third-party websites or services that we do not own or control. Our Privacy Policy does not apply to those services. We strongly recommend reviewing their privacy policies before use. We bear no responsibility for the content, privacy practices, or conduct of any third-party websites or services.
5. Data and Advertising
We may:
•Use collected data (including data from Firebase and AppsFlyer) to improve and enhance the App and related services;
•Display third-party advertisements via Google AdMob to support the free provision of the App;
•Use automated systems to detect and prevent abuse (e.g., spam, malware).
We do not sell personal information to advertisers. You may opt out of personalized advertising at any time through your device settings.
6. User Rights Protection
We respect your privacy. You have the following rights:
Manage Permissions: You can turn off permissions such as location and notifications through your device settings.
Data Access and Deletion: If you wish to view or delete your personal information, please contact our support team.
We commit to using data only for the stated purposes and adhere to the principle of data minimization.
7. Age Limits
Our services are not directed to children under the age of 13. We do not knowingly collect personal data from children under 13. If a parent or guardian becomes aware that their child has provided us with personal data without consent, they should contact us immediately.
If we discover that we have inadvertently collected personal data from a child under 13, we will take prompt steps to delete that information. We will not use such data for any purpose.
8. Changes to This Privacy Policy
We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page. We recommend that you review this page periodically to stay informed of any updates. Changes take effect immediately upon posting.
9. Contact Us
If you have any questions about this Privacy Policy or wish to exercise your rights, please contact us at:
Email: [techosteg@gmail.com]