DayFiles publisher information

How the Private PDF app works

Private PDF is an Android app wrapper around the DayFiles browser-first PDF runtime. The interface, PDF engines, and export flow are tuned for mobile while keeping core supported processing local.

By DayFiles Editorial TeamLast updated Apr 12, 2026

Android app shell plus local PDF runtime

The Android app uses a native shell to host the DayFiles PDF interface and client-side processing engines. That lets the app feel mobile-native while keeping the core supported PDF work on the device.

This approach is different from an upload-and-wait PDF SaaS app because the normal path is still local execution rather than a remote conversion queue.

Offline-ready behavior

After the app loads successfully and caches the required assets, many supported workflows can continue without a live network connection. Device storage pressure or cache clearing can remove those assets later, which may require the app to reconnect once.

Offline readiness improves convenience, but it does not guarantee every route or external support page remains available without connectivity.

File selection and export on Android

You choose the source files through Android file pickers and complete the workflow in-app. When output is ready, the app uses Android save or share flows so you can pick the destination yourself.

This keeps the final step under device control instead of automatically pushing files to a server account.

Stay in the loop

Get new private PDF tools and workflow updates first

Join the email list for meaningful product updates, new local-first PDF workflows, and practical guides. No paywall, no account required to use the tools, and no noisy daily blasts.

New tool launchesWorkflow guidesPrivacy-first updates
Files stay local. Only your email is submitted here.