Chrome Extension Privacy Policy
CalcMaster PDF Tools — Chrome Extension
Last updated: March 21, 2026
Overview
CalcMaster PDF Tools ("the Extension") is developed by CalcMasterPro. We are committed to protecting your privacy. This policy explains what data the Extension collects, stores, and how it is used.
Data Collection
The Extension does NOT collect, transmit, or share any personal data.
Specifically, the Extension:
- Does not collect personally identifiable information (PII)
- Does not track your browsing history or activity
- Does not use cookies or tracking pixels
- Does not make network requests to any analytics, advertising, or data collection services
- Does not access the content of any web pages you visit
- Does not read, modify, or transmit any files on your device
Data Storage
The Extension stores the following data locally on your device only using Chrome's built-in chrome.storage.local API:
- Favorites — A list of tool names you have marked as favorites
- Recent tools — A list of the last 8 tools you opened through the Extension
- Settings — Your preferences (e.g., whether to open tools in a new tab)
This data:
- Never leaves your device
- Is not transmitted to any server
- Is not shared with any third party
- Can be cleared at any time through the Extension's Settings panel
Permissions
The Extension requests only two Chrome permissions:
- storage — To save your favorites, recents, and settings locally
- contextMenus — To add convenient right-click menu options
No other permissions (such as access to browsing data, tabs content, or web requests) are requested or used.
External Links
When you click on a tool in the Extension, it opens the corresponding page on calcmasterpro.site in your browser. The privacy practices of that website are governed by its own privacy policy.
Changes to This Policy
If we make changes to this privacy policy, we will update the "Last updated" date above. Continued use of the Extension after changes constitutes acceptance of the updated policy.
Contact
If you have questions about this privacy policy, please contact us at hello@calcmasterpro.site.