May 6, 2020

1.3.1 (2020-05-05)
- Declare that this app can handle limited file types, so that it will not appear in some strange places
- Add an introduction page (can be opened in the Play Store, but not displayed in home apps)

1.2.1 (2020-04-30)
- On Android 10, Media Store cannot choose the file name correctly, we have to choose the file name by requesting storage permission