Privacy Policy

Last Updated: November 13, 2025

1. Introduction

PreviewFile.dev ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our secure file preview service.

2. Information We Collect

2.1 Account Information

• Name and email address
• Company/organization name
• Authentication credentials
• Billing information (processed securely by Stripe)

2.2 File and Usage Data

• Uploaded file metadata (filename, size, type, upload timestamp)
• Short link access patterns and statistics
• File preview configurations (watermarks, security settings, TTL)
• API usage metrics and request logs

2.3 Technical Information

• IP addresses
• Browser type and version
• Device information
• Referrer URLs and access patterns

3. How We Use Your Information

• To provide and maintain our file preview service
• To generate secure short links and preview interfaces
• To process your payments and manage subscriptions
• To enforce security policies (download restrictions, one-time links, watermarks)
• To send you administrative information and updates
• To improve our service and develop new features
• To ensure security and prevent abuse
• To comply with legal obligations

4. File Handling and Storage

4.1 Uploaded Files

• Files you upload are stored securely on our servers or configured storage providers (S3, etc.)
• File content is only accessed for preview generation and watermark application
• We do not scan, analyze, or use your file contents for any purpose other than providing the preview service

4.2 URL-Based Previews

• For URL-based previews (/u?url=...), we create short links that hide the original URL
• The original URL is stored encrypted in our database
• We do not download or cache the actual file content unless explicitly configured

4.3 File Retention

• Uploaded files are retained according to your configured TTL (Time To Live) or subscription plan limits
• One-time links are automatically deleted after first access
• You can manually delete files and short links at any time through your dashboard

5. Data Sharing and Disclosure

We do not sell your personal information or file data. We may share data with:

• Service Providers: Stripe (payments), cloud storage providers (S3, etc.), hosting providers
• Legal Requirements: When required by law or to protect our rights
• Business Transfers: In connection with a merger, acquisition, or sale of assets

We never share your uploaded files or URLs with third parties except as required by law.

6. Data Security

We implement industry-standard security measures to protect your data, including:

• Encryption in transit (HTTPS/TLS)
• Encrypted storage for sensitive data (URLs, file metadata)
• Secure authentication and access controls
• Regular security audits and monitoring
• Configurable security policies (watermarks, download restrictions, one-time links)

However, no method of transmission over the Internet is 100% secure.

7. Data Retention

• Account data: Retained while your account is active
• Uploaded files: Retained according to configured TTL or plan limits
• Short link metadata: Retained until manually deleted or account closure
• Access logs: Retained for 90 days for security and analytics purposes

You may request deletion of your data at any time.

8. Your Rights

Depending on your location, you may have the right to:

• Access your personal data and file metadata
• Correct inaccurate data
• Request deletion of your data and files
• Export your data
• Opt-out of marketing communications
• Withdraw consent

9. Cookies and Tracking

We use cookies and similar technologies to maintain your session, remember preferences, and analyze usage patterns. You can control cookie settings through your browser.

10. International Data Transfers

Your data may be transferred to and processed in countries other than your own. We ensure appropriate safeguards are in place to protect your data in accordance with this Privacy Policy.

11. Children's Privacy

Our service is not directed to individuals under 18 years of age. We do not knowingly collect personal information from children.

12. Third-Party Links and Content

When you use URL-based previews, you are directing our service to fetch content from external URLs. We are not responsible for the privacy practices or content of those third-party websites.

13. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any material changes by posting the new policy on this page and updating the "Last Updated" date.

14. Contact Us

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

• Email: [email protected]
• Website: https://previewfile.dev

15. GDPR Compliance (EU Users)

For users in the European Union:

• Legal basis for processing: Consent, contract performance, legitimate interests
• Data controller: PreviewFile.dev
• Right to lodge a complaint with your local supervisory authority
• Data Protection Officer: Contact [email protected]

16. CCPA Compliance (California Users)

California residents have additional rights under the CCPA:

• Right to know what personal information is collected
• Right to delete personal information
• Right to opt-out of the sale of personal information (we do not sell data)
• Right to non-discrimination for exercising CCPA rights

17. File Content and Copyright

17.1 Your Responsibility

You are solely responsible for ensuring you have the rights to upload, store, and share files through our service. We do not monitor uploaded content for copyright violations.

17.2 DMCA Compliance

We comply with the Digital Millennium Copyright Act (DMCA). If you believe content on our platform infringes your copyright, please contact [email protected] with:

• Description of the copyrighted work
• URL or identifier of the infringing material
• Your contact information
• Good faith statement that use is not authorized
• Statement of accuracy under penalty of perjury
• Physical or electronic signature