Privacy Policy

Last Updated: December 26, 2025

Welcome to PDF Bilingual Translator. We are committed to protecting your privacy and ensuring you have a secure reading and translation experience. This Privacy Policy explains how we handle your data.

1. Local Storage Principle

Your Documents Stay With You. Unlike many other PDF tools, we employ a "Local First" architecture. When you open a PDF file in our application, it is processed directly within your browser's local environment. The file itself is stored in your browser's local database (IndexedDB) and is not uploaded to our cloud servers for storage.

2. Translation Processing

To provide high-quality translation services, specific text segments extracted from your documents are sent to our high-performance translation engine API.

• We only transmit the text required for translation.
• The original PDF file structure and images remain on your device.
• Data sent to the translation engine is used solely for the purpose of generating translations and is not stored permanently or used to train public AI models.

3. Data Collection

We collect minimal data to provide our services:

• Account Information: If you register, we collect your email address to manage your subscription and credits.
• Usage Data: We may collect anonymous usage statistics (e.g., number of pages translated) to improve system performance and stability.

4. Security

We use industry-standard encryption (TLS/SSL) for all data transmission between your browser and our translation services. Since your files are stored locally, you retain full control over their security on your device.

5. Changes to This Policy

We may update this privacy policy from time to time. We will notify you of any significant changes by posting the new policy on this page.

6. Contact Us

If you have any questions about this Privacy Policy, please contact us at support@pdf2translate.com.