Last updated: November 5, 2026.
SaphanBridge helps users translate and hear selected Thai and English text, and read PDF documents. It requires no account. The extension contains no advertising or analytics code and does not operate a SaphanBridge server.
Only when you choose Translate, SaphanBridge reads the selected text and opens a Google Translate webpage with that text embedded in the URL. Google receives the text and may process it under Google's own terms and privacy policy. The URL may appear in your browser history, synced history, or URL logs. Do not translate confidential text using this feature.
Only when you choose Speak, SaphanBridge sends the selected text to Google's web pronunciation endpoint over HTTPS. Longer selections are divided into smaller requests and played sequentially. If it cannot play that audio, the extension uses Chrome's text-to-speech service; installed voice engines may have their own processing behavior. SaphanBridge does not receive a copy of the audio or selected text on a developer-controlled server.
For local PDFs, the bundled PDF.js viewer renders the document in your browser. For online PDFs, the extension requests permission for the source website's origin and fetches the PDF directly from that website into the browser (without sending browser cookies in that fetch). Website permission covers URLs on that origin, not just one PDF. The extension does not send PDF contents to SaphanBridge or Google for translation; only the text you explicitly select and translate or speak is sent to Google. Some protected online PDFs may not load.
When you invoke a shortcut, context menu action, or PDF reader action, SaphanBridge accesses the relevant selected text or document URL to perform that action. The optional text-selection override changes page selection styling on request. The extension uses temporary Chrome session storage for pending PDF-opening requests and PDF shortcut guidance; it does not create user profiles, save translation histories in its own storage, or sell user data. Browser and third-party service retention practices are outside SaphanBridge's control.
Google receives selected text for translation and pronunciation as described above; Chrome and installed voice providers may process speech requests. Source websites receive ordinary requests when their PDFs are fetched. If you do not wish to transmit selected text to Google, do not invoke Translate or Speak. You can remove optional website permissions in Chrome's extension settings or uninstall SaphanBridge at any time.
Changes to this policy will be reflected in an updated version and publication date. For privacy inquiries, contact the developer through the support contact shown on the SaphanBridge Chrome Web Store listing.