Privacy Policy

Last updated:

1. Introduction

KeyGuard PDF ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our Application. Our zero-knowledge architecture ensures that your document contents remain private and inaccessible to us.

2. Zero-Knowledge Architecture

KeyGuard PDF is built on a zero-knowledge architecture, which means:

• Your documents are encrypted on your device before transmission
• We do not have access to your encryption keys
• We cannot decrypt or read the contents of your documents
• We do not store your encryption keys on our servers

3. Information We Do Not Collect

Due to our zero-knowledge architecture, we do not collect:

• The contents of your encrypted PDF documents
• Your encryption keys
• Document metadata that could reveal sensitive information

4. Information We May Collect

We may collect limited technical information necessary for the Application to function:

• Device information (operating system, device type)
• Application usage statistics (without identifying your documents)
• Error logs and crash reports (without document content)
• Account information if you create an account (email address, username)

5. How We Use Your Information

The limited information we collect is used solely for:

• Providing and maintaining the Application
• Improving the Application's performance and reliability
• Responding to your support requests
• Compliance with legal obligations

6. Data Storage and Security

Your encrypted documents may be stored:

• Locally on your device
• In cloud storage services (when syncing is enabled)

When documents are synced to cloud storage, they remain encrypted. We do not have access to the decrypted contents of these files. You are responsible for maintaining the security of your encryption keys.

7. Third-Party Services

KeyGuard PDF may integrate with third-party cloud storage services for synchronization. These services have their own privacy policies. We are not responsible for the privacy practices of third-party services. Your documents remain encrypted even when stored with third-party services.

8. Your Rights

You have the right to:

• Access any personal information we hold about you
• Request correction of inaccurate information
• Request deletion of your account and associated data
• Opt-out of non-essential data collection

9. Children's Privacy

KeyGuard PDF is not intended for children under the age of 13. We do not knowingly collect personal information from children. If you believe we have collected information from a child, please contact us immediately.

10. Data Retention

We retain your information only as long as necessary to provide the Application and comply with legal obligations. If you delete your account, we will delete or anonymize your personal information, except where we are required to retain it by law.

11. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any material changes by updating the "Last updated" date and, if necessary, providing additional notice through the Application or email.

12. Contact Us

If you have any questions about this Privacy Policy, please contact us at support.