Not a policy: the permissions the app does not have.
No network on Google Play.
The Google Play build has no internet permission. Android will not let it open a connection, and you can check it in the app’s permissions.
01 · What leaves the phone
- Your PDFs: only when you share one, to the app you choose.
- The GitHub build asks github.com once a day for its latest release. Nothing about you or your PDFs goes with it.
- Nothing else. No account, no sign-in, no analytics, no crash reports, no ads.
02 · What stays on the phone
- The pages and their text, read by PDFium inside the app.
- The text of scanned pages, read by OCR on the phone. See Scanned pages.
- A count of the apps you share to, used only for the buttons along the bottom.
03 · What it asks for
- No storage permission. It reads the one PDF another app hands it, or the one you pick.
- Vibration, for the tap under your finger.