Use Text-to-speech to have text in the language of a PDF file read aloud. You can use Google's and Samsung text-to-speech engine.
Initiate text-to-speech in a PDF file
In View mode:
1. Open a PDF file. Tap the Contextual menu in the top right.
2. Tap Text-To-Speech to initiate text-to-speech, or tap Text-To-Speech Options to select a language.
In Edit mode:
1. Open a PDF file. In the Home tab, swipe the toolbar to reveal more options.
2. Select the text you want to have read aloud either manually,
or the adjacent Select All.
3. Tap the Text-To-Speech button to initiate text-to-speech, or tap the down-pointing arrow for the language list.
4. In the resulting window, select your preferred language.
Set the right language
If you are having trouble with Text-to-speech reading your text in the wrong language,
1. Go to device Settings, General management.
2. Tap Language packs or Text-to-speech, if available.
3. Select your language.
Optionally, download the language pack to your device. Adjust Speech rate, Pitch, Intonation.