Open source

Google ML Kit

ML Kit Text Recognition 16.0.1 provides on-device OCR under applicable Google SDK terms; it is not an open-source component. See the Privacy Policy for SDK data practices.

1. What this page covers

This is a readable summary of major components used in the current Android build, not a replacement for the exact license notices accompanying a release. The app's Settings → About → Open-source licenses shows a component inventory. A public release must include all required notices and satisfy source/relinking obligations for the precise packaged binaries.

2. Major components

AndroidX Compose, Lifecycle, WorkManager, DocumentFile and ExifInterface — primarily Apache License 2.0.

PDFBox Android, Apache Commons Compress, Commons Lang, Commons CSV and Commons IO — Apache License 2.0.

FFmpegKit maintained (non-GPL full variant) — LGPL 3.0 obligations require distribution review; components and native configurations must be checked before release.

junrar — UnRAR License, used for RAR reading/extraction, not RAR creation.

XZ for Java — 0BSD; Smart Exception — BSD 3-Clause.

SnakeYAML — Apache License 2.0; RE2/J 1.8 — Go/RE2 BSD-style license. Google Play In-App Update, Google Mobile Ads and UMP are Google services/SDKs under applicable Google terms, not open-source licenses; see the Advertising Policy for ad data practices.

3. Exact notices and upstream source

The app's Open-source licenses screen includes the Apache, RE2/J, Commons, Bouncy Castle 1.86, Smart Exception, XZ, junrar/UnRAR and FFmpegKit LGPL notices. The FFmpegKit AAR also packages native component license resources. The maintained FFmpegKit 8.1.9 upstream source is linked for inspection; the publisher must approve the final LGPL source/relinking plan before public distribution.

4. Names, source and questions

Third-party names do not imply endorsement of File Converter & Toolbox, and their inclusion does not transfer their rights to PerfectSky Studios. For license or distribution questions, contact perfectskystudios@gmail.com . This legal website contains only site files; it does not publish the Android app's source code or compiled libraries.