Privacy Policy of PDF Reader Master

Last Updated: September 5, 2025
Effective Date: September 5, 2025

Thank you for choosing PDF Reader Master (hereinafter referred to as “the App”). We value your privacy and are committed to protecting your personal information. This Privacy Policy will help you understand:

1. What information we collect;

2. How we use this information;

3. How we share and store this information;

4. Your rights regarding your data;

5. How we protect your information;

6. Information about third-party services we use;

7. International data transfer;

8. Updates to this policy and how to contact us.

Please read this Privacy Policy carefully before using the App.

1. Information We Collect

The App does not require account registration, login, cloud services, or paid subscriptions. You can directly use the reading, viewing, and organizing features.

However, during usage, we may collect information in the following ways:

1.1 Information You Provide Voluntarily

• Feedback Information: When you contact us via email, you may provide your contact details, problem descriptions, or screenshots.

1.2 Information Collected Automatically

• Device Information: Such as device model, operating system version, unique device identifiers (e.g., Android ID, Advertising ID), and network type.

• App Usage Data: Such as app launch counts, time spent on pages, crash logs, and usage behavior.

• Advertising Data: Such as ad display frequency and clicks, used for ad optimization.

1.3 Information Collected by Third-Party SDKs

Since the App integrates third-party services (such as Firebase, AdMob, and AppsFlyer), these services may collect device information, advertising identifiers, and usage statistics. See Section 6 for details.

2. How We Use Information

We use the information collected for the following purposes:

1. To ensure the App’s core features operate properly;

2. To analyze usage and improve user experience and performance;

3. To diagnose crashes, fix issues, and optimize stability;

4. To display and optimize advertisements;

5. To comply with applicable laws and regulations.

We will not use your information for purposes not covered by this Privacy Policy.

3. Information Sharing, Transfer, and Disclosure

3.1 Sharing

We do not share your personal information with third parties except in the following cases:

• To enable functionality that requires third-party services;

• To comply with laws, regulations, or legal processes;

• With your explicit consent.

3.2 Transfer

We will not transfer your information to others unless:

• You provide explicit consent; or

• In the event of a merger, acquisition, or asset transfer requiring data migration.

3.3 Disclosure

We will not publicly disclose your information unless:

• Required by law or regulation;

• Necessary for public interest, such as investigating security incidents.

4. Data Storage and Retention

• Storage Location: Data may be stored locally on your device or on third-party servers.

• Retention Period: We will retain your information only for the shortest period necessary to achieve the purposes outlined in this Privacy Policy. After that, data will be deleted or anonymized.

5. Your Rights

You have the following rights regarding your personal information:

1. Right of Access: You may request access to the information we collect.

2. Right to Rectification: You may request correction of inaccurate or incomplete information.

3. Right to Erasure: You may request deletion of your data when applicable.

4. Right to Withdraw Consent: You may disable personalized ads at any time (e.g., by resetting or disabling the Google Advertising ID) to withdraw consent for data collection.

To exercise these rights, please contact us using the details provided in Section 11.

6. Third-Party Services

The App integrates third-party SDKs for analytics, advertising, and attribution:

• Google Firebase (analytics and performance monitoring)
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• Google AdMob (advertising display and optimization)
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• AppsFlyer (installation attribution and marketing analytics)
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These third parties may collect anonymized device information, advertising identifiers, and usage data. Data processing will follow their respective privacy policies.

7. International Data Transfer

Since third-party service providers may have servers worldwide, your data may be transferred to and stored in countries outside your jurisdiction. We will ensure that such transfers comply with applicable legal requirements.

8. Data Security

We adopt reasonable technical and organizational measures to protect your information, including:

• Encryption during data transmission;

• Access control to limit unauthorized access;

• Regular security audits.

Please note that no method of data transmission or storage over the Internet is 100% secure, but we strive to safeguard your information.

9. Children’s Privacy

The App is not directed at children under 13 years old. If we discover that we have inadvertently collected information from children without parental consent, we will delete such data promptly.

10. Updates to This Policy

We may update this Privacy Policy from time to time. Updated versions will be published within the App and on the app store page and will take effect from the date of publication.

11. Contact Us

If you have any questions, concerns, or complaints about this Privacy Policy or our data practices, please contact us at:

Email: pmolnarova26@gmail.com