Privacy Policy

Last updated: January 2026

PDFshelf is a browser extension designed to help users highlight text, add annotations, and record thoughts directly on webpages. Your privacy is important to us. This Privacy Policy explains how PDFshelf handles user data.

1. Data Collection

PDFshelf does not collect, transmit, or sell any personal data.

The extension does not collect:

• Personally identifiable information
• Browsing history
• Search queries
• Authentication or account data

2. Local Data Storage

All highlights, annotations, and user-created notes are stored locally in your browser using IndexedDB.

This data:

• Remains entirely on your device
• Is not transmitted to any external server
• Is only accessible within your browser profile

3. Data Usage

Locally stored data is used solely to provide the core functionality of the extension, including:

• Displaying highlights and annotations on webpages
• Showing page-specific notes in the side panel
• Allowing users to review, revisit, and export their notes

4. Data Sharing

PDFshelf does not share user data with third parties.

No analytics services, tracking scripts, or advertising platforms are used.

5. Data Retention

All data remains stored locally until the user chooses to delete it or removes the extension from their browser.

6. Changes to This Policy

This Privacy Policy may be updated from time to time. Any changes will be reflected on this page with an updated revision date.

7. Contact

If you have questions about this Privacy Policy or how PDFshelf handles data, you may contact the developer via email at wangjiasansan@gmail.com.

PDFshelf is a local-first tool. Your thoughts stay with you.