Your friend needs to use a real screen reader that follows the industry standards for accessible text-to-speech.
On Windows, try JAWS or NVDA.
- JAWS is by Freedom Scientific http://www.freedomscientific.com/ You can download a trial version that gives you 40 minutes of use. After that, you must either buy the software outright or reboot your computer to get another 40 minute session.
- NVDA is free from NV Access. https://www.nvaccess.org/
Both programs can read anything that's on a Windows screen, any program, any file type. But that doesn't mean it will be able to give a satisfactory experience in InDesign. Two reasons:
- The InDesign document itself must be made accessible with a correct reading order, Alt-text, etc.
- And InDesign wasn't developed to be an accessible program. The PDFs exported from InDesign CAN be accessible, but not necessarily the base INDD layout file.
If your friend must read the INDD file for editing purposes, you might want to try Adobe's matching InCopy program. I believe it's still available as a free download.