Privacy Policy

Effective Date: August 4, 2025
Last Updated: August 4, 2025

This Privacy Policy explains the personal data we collect when you use the All PDF Reader, PDF Viewer app and the purposes for which we use that data.

1. Contact

If you have any questions, please contact us via email at: huongtram159@gmail.com

2. Subject of Data Protection

The subject of data protection is personal data. According to Article 4(1) GDPR, personal data refers to any information related to an identified or identifiable natural person, such as names or identification numbers.

3. Collection and Use of Data

3.1. Automated Data Collection

When you access the All PDF Reader, PDF Viewer app, your device automatically sends data for technical reasons. This data is stored separately from any other data you may provide to us, including:

• Date and time of access
  
  

• Browser type/version
  
  

• Operating system used
  
  

• URL of the previously visited website
  
  

• IP address (truncated by one octet)
  
  

This data is stored for technical purposes only and is not associated with any specific individual.

3.2. Support Requests

If you contact our support team, we collect and store the personal data you provide to process your request. You are not required to provide personal data and may contact us using a pseudonym.
We store support requests for 120 days after completion to ensure your request has been processed successfully and to assist with any future issues.

Data processing for support requests is conducted to fulfill your request and ensure proper operation of the app, pursuant to Article 6(1)(b) GDPR. For general inquiries, we process data based on our legitimate interest in responding to emails, pursuant to Article 6(1)(f) GDPR.

4. Cookies

We use "cookies" to provide all features of the app and enhance user experience. Cookies are small files stored on your device via your browser. You may block cookies through your browser settings, though this may limit some app features.

Specifically, we use the following cookies:

• Cookies from Firebase
  
  

• Cookies from Facebook Meta SDK
  
  

• Cookies from Google Ads (to measure advertising effectiveness)
  
  

• Cookies from Google Analytics (for statistical evaluation and service improvement)
  
  

These cookies do not personally identify you. Use of cookies is based on our legitimate interest in improving user experience and app design, pursuant to Article 6(1)(f) GDPR.

5. Data Transfer

5.1. Transfer to Law Enforcement Authorities

In the event of suspected illegal activity, personal data may be disclosed to law enforcement or third parties if there are specific indications of misuse. We may also comply with lawful data requests from public authorities.
This data transfer is based on legitimate interest (Article 6(1)(f) GDPR) or legal obligation (Article 6(1)(c) GDPR).

5.2. Use of Third-Party Service Providers

We work with third-party providers to deliver our services. These providers may receive personal data for processing purposes. All providers are carefully selected and comply with relevant data protection standards.
Transfers are made in accordance with Article 28(1) GDPR or based on our legitimate interest (Article 6(1)(f) GDPR).

6. Data Deletion

We delete or anonymize personal data when it is no longer necessary for the purposes for which it was collected, including:

• Support requests: after 120 days
  
  

• Google Analytics data: after 14 months
  
  

7. Children’s Privacy (COPPA)

The All PDF Reader, PDF Viewer app is not intended for children under 13 and does not knowingly collect data from them, in accordance with the Children’s Online Privacy Protection Act (COPPA).

8. Changes to this Privacy Policy

We may update this Privacy Policy to reflect legal or operational changes. Please review it periodically to stay informed.