Fix Adobe Acrobat Read Aloud Not Working on Galaxy Tab S7+
Question details
The Read Aloud feature fails to play PDF text and triggers system errors after a voice change.

- Product
- Adobe Acrobat Reader Mobile
- Device & OS
- Android (Galaxy Tab S7+)
- Scenario
- Attempting to use the text-to-speech feature to listen to multiple PDF documents.
- Observed behavior
- The application displays system errors during text playback and reports that Read Aloud is unavailable after a different voice is selected.
Ensure your Galaxy Tab S7+ is not muted and the media volume is turned up. Verify that the PDF files you are trying to read contain highlightable text, as Read Aloud cannot process flat scanned images without prior OCR processing.
Configure System Text-to-Speech Settings
Fix voice playback errors by ensuring your Android device's native Text-to-Speech engine is set to a fully supported language profile.
Adobe Acrobat Reader Mobile relies on the native Android Text-to-Speech (TTS) engine to read documents aloud. If an unsupported language pack or corrupted voice profile is selected at the system level, Acrobat will fail to initialize the audio playback.
Navigate to the home screen of your Galaxy Tab S7+ and open the 'Settings' application.
Scroll down and tap on 'Accessibility', then select 'Text-to-speech' or 'Text-to-speech output'.
Tap on 'Language' and choose a standard, supported language (such as default English) rather than an experimental or unsupported alternative voice.
Completely close Adobe Acrobat Reader Mobile from your recent apps list and reopen it.
Open a text-based PDF document, activate the Read Aloud feature, and verify that the audio plays correctly.

Clear App Cache and Re-select TTS Engine
Resolve persistent app glitches by clearing the Acrobat cache and switching your primary TTS engine to Google Speech Services.
Use WPS Office to Read PDFs on Android
If Adobe Acrobat's Read Aloud feature continues to throw system errors, WPS Office offers a stable, built-in Audio Reading tool for PDFs. It is lightweight, reliable, and perfectly optimized for Android tablets like the Galaxy Tab S7+.
- 1. Install WPS Office: Download and install the free WPS Office app from the Google Play Store on your Galaxy Tab S7+.
- 2. Open Your PDF: Launch WPS Office, navigate to the 'Files' tab, and open the PDF document you wish to listen to.
- 3. Access the Tools Menu: Tap the 'Tools' icon at the bottom of the screen to open the feature panel.
- 4. Activate Audio Reading: Swipe over to the 'View' tab and select the 'Audio Reading' option to begin text-to-speech playback.
- 5. Adjust Playback Settings: Use the on-screen controls to adjust the reading speed and pause or resume the voice playback as needed.

Frequently Asked Questions
Why does Adobe Acrobat report 'voice unavailable' during Read Aloud?
This occurs when the Text-to-Speech voice selected in your Android system settings is either corrupted, not fully downloaded, or incompatible with the Adobe application. Reverting to the system default voice generally solves the problem.
Can I use the Read Aloud feature on scanned PDF documents?
No, standard Read Aloud functions require selectable digital text. If your PDF is composed of scanned images, you must first process the document using an OCR (Optical Character Recognition) tool to convert the images into readable text.
Where can I change the default Text-to-Speech engine on a Galaxy Tab?
You can change the Text-to-Speech engine by navigating to Settings > General management (or Accessibility) > Text-to-speech output. From there, you can choose between Samsung's native engine or Speech Services by Google.




