Acrobat Reader -- Read Out Loud feature

I believe that not many people are aware that there is a speech synthesizer existed in Acrobat Reader (version 6 & above), where it can read the PDF file with the sound coming out from the speaker.

Hence, a person with certain cognitive disabilities might benefit from reading and hearing the information.

To enable the Read Out Loud feature, just simply select View > Read Out Loud and then select one of the available options that you want.

It also allows customization where you can change the default Read Out Loud attributes.
To get into the settings, choose Edit > Preferences > Reading from the list of categories on the left side of the window (as shown).