R.Wieser wrote on Mon, 27 May 2024 21:19:04 +0200 :

> https://f-droid.org/en/packages/com.github.axet.bookreader/

To help Rudy Wieser, even as I'm not sure I understand the problem set,
from Windows, I downloaded & installed the v1.15.3 APK onto my Android.
https://f-droid.org/en/packages/com.github.axet.bookreader/
Name: com.github.axet.bookreader_416.apk
Size: 26618987 bytes (25 MiB)
SHA256: 43B3BA5D52B552D2B87ADB2A2DCBE4CC9C8FCB6C528D2BD31FA54DEBE104A843

It opened onto my Android 13 Galaxy without asking me for any permissions.
intent:#Intent;package=com.github.axet.bookreader;component=com.github.axet.bookreader/.activities.MainActivity;end

When I looked at the permissions using the FOSS Muntashirakon App Manager.
https://muntashirakon.github.io/AppManager/en/
The permissions that it obtains automatically appear to be these;
however mine are always automatically revoked, so they're all in red.
<https://i.postimg.cc/nrRnT8wh/permission.jpg>

Revoked: android.permission.POST_NOTIFICATIONS
Allows the app to show notifications

Revoked: android.permission.READ_EXTERNAL_STORAGE
Allows the app to read the contents of your shared storage

Revoked: android.permission.READ_MEDIA_AUDIO
Allows the app to read audio files from your shared storage

Revoked: android.permission.READ_MEDIA_IMAGES
Allows the app to read image files from your shared storage

Revoked: android.permission.READ_MEDIA_VIDEO
Allows the app to read video files from your shared storage

Revoked: android.permission.READ_PHONE_STATE
Allows the app to access the phone features of the device.
This permission allows the app to determine the phone number
and the device IDs, whether a call is active, and the remote
number is connected by a call.

Revoked: android.permission.WRITE_EXTERNAL_STORAGE
Allows the app to write the contents of your shared storage

Now I needed an ebook to test out the program somehow.
<https://www.google.com/search?q=free+ebook+android+for+dummies>

Arbitrarily, I'll take this 1st hit (as I don't care the file).
<https://libgen.is/search.php?&req=android+for+dummies>

To help, I'll arbitrarily download a PDF, a mobi & an epub sample.

PDF:
<https://libgen.is/book/index.php?md5=BE5B8864711EDE687989AF74AD3AE559>
<https://library.lol/main/BE5B8864711EDE687989AF74AD3AE559>
<https://download.library.lol/main/3452000/be5b8864711ede687989af74ad3ae559/Jerome%20DiMarzio%20-%20Android%20Smartphones%20For%20Dummies%20%28For%20Dummies%20%28Computer_tech%29%29-For%20Dummies%20%282022%29.pdf>

MOBI:
<https://libgen.is/book/index.php?md5=83B63DAFDF5C88B97C39CA06F089185B>
<https://library.lol/main/83B63DAFDF5C88B97C39CA06F089185B>
<https://download.library.lol/main/3858000/83b63dafdf5c88b97c39ca06f089185b/Jerome%20DiMarzio%20-%20Android%20Smartphones%20for%20Dummies-For%20Dummies%20%282022%29.mobi>

EPUB:
<https://libgen.is/book/index.php?md5=71C9F7998BA8FC0D0CFCC4A0BC5FA4D2>
<https://library.lol/main/71C9F7998BA8FC0D0CFCC4A0BC5FA4D2>
<https://download.library.lol/main/3112000/71c9f7998ba8fc0d0cfcc4a0bc5fa4d2/Mark%20Hemmings%20-%20Android%20Smartphone%20Photography%20For%20Dummies-For%20Dummies%20%282021%29.epub>

I only tested this momentarily as I never used an ebook reader
on Android before & then deleted the app & the files afterward.

a. The PDF read into the app just fine, without permission issues.
b. The app didn't see the MOBI file (which I found surprising).
c. The epub read into the app just fine, without permission issues.

To test what formats the suggested app could read, I used Calibre
on Windows to convert the books to a dozen ebook reader formats.
<https://calibre-ebook.com/download_windows>
Notably, the AZW3 (Amazon) format was not read in by that reader.