# Privacy Policy for Substack PDF Downloader
**Last Updated:** December 25, 2025
The Substack PDF Downloader extension ("we", "us", or "our") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information.
## 1. Information We Collect
We collect the following personal information:
* **Email Address:** We collect your email address via Google Sign-In to create your user account and manage your usage quotas (Free vs. Pro tiers).
* **Authentication Data:** We store a secure token to maintain your signed-in state.
We do **NOT** collect:
* Your Substack passwords or login credentials.
* Your payment details (payments are processed securely by Stripe).
* Your browsing history outside of Substack domains.
## 2. How We Use Your Information
We use your information strictly to:
* Authenticate you as a user.
* Enforce daily download limits based on your subscription tier.
* Provide customer support if you contact us.
## 3. Data Sharing
We do not sell, trade, or rent your personal identification information to others. We may share generic aggregated demographic information not linked to any personal identification information regarding visitors and users with our business partners and advertisers for the purposes outlined above.
## 4. Security
We adopt appropriate data collection, storage, and processing practices and security measures to protect against unauthorized access, alteration, disclosure, or destruction of your personal information.
## 5. Contact Us
If you have any questions about this Privacy Policy, please contact us at: neocrtxai@gmail.com