Fix Acrobat Read Out Loud Using One Language for Multilingual PDFs
Question details
The user has a tagged PDF containing multiple languages (e.g., English and French), but the text-to-speech feature reads the entire document using a single language and voice.
- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Attempting to use the Read Out Loud feature to listen to a correctly tagged multilingual PDF document.
- Observed behavior
- Acrobat Read Out Loud ignores the language attributes in the PDF tags and reads all text using the default configured voice.
Verify that your PDF document is properly tagged and that the correct language attributes (such as English and French) are assigned to the respective text properties in the Tags tree.
Test the PDF with a Dedicated Screen Reader like NVDA
Because Acrobat's native Read Out Loud tool does not reliably honor language attributes, use a standard screen reader to verify multilingual tags.
Acrobat's built-in Read Out Loud feature primarily uses the single voice configured in its reading preferences and often ignores specific language attributes embedded in PDF tags. Strictly speaking, Read Out Loud is a basic utility rather than full assistive technology.
To properly read multilingual tagged PDFs, you should use a dedicated screen reader like NVDA, which is designed to detect and switch voices based on language tags.
Download and install NVDA (a free screen reader for Windows) from the official NV Access website.
Ensure that the required language voices (e.g., English and French) are installed and enabled in your Windows operating system text-to-speech settings.
Launch the screen reader, then open your tagged PDF. The screen reader should now automatically switch voices when it detects different language attributes in the tags.
Change the Acrobat Read Out Loud Default Voice
If you only need to read a specific language section and do not want to use a third-party screen reader, manually change the default voice in Acrobat.
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Frequently Asked Questions
Why does Acrobat Read Out Loud ignore my French text tags?
Acrobat's built-in Read Out Loud feature is designed as a basic text-to-speech utility and relies on the single default voice selected in its preferences. It does not actively switch voices based on the localized language attributes within PDF tags.
How do I correctly tag languages in a PDF document?
You can assign language tags by opening the Tags panel in your advanced PDF editor, selecting the specific text node or container, opening its properties, and setting the 'Language' attribute to the correct ISO language code (e.g., 'fr-FR' for French or 'en-US' for English).
Is NVDA free to use for reading multilingual PDFs?
Yes, NVDA (NonVisual Desktop Access) is a free, open-source screen reader for Windows. Unlike Acrobat's basic Read Out Loud tool, NVDA properly interfaces with accessibility APIs to process and read PDF language tags accurately.
