Convert the PDF text to plain text or DOCX using OCR if needed
Edit and clean the text for readability and chapter breaks
Create or obtain an audio recording of the text
Save the audio as a supported source format such as WAV or MP3
Use audiobook conversion software to package the audio into an AAX-compatible audiobook structure
Add metadata such as title, author, narrator, and chapter markers
Encode or export the audiobook in AAX format if the software supports it
If direct AAX export is not available, convert the audio to M4B or another audiobook format and then use a compatible AAX creation tool
Verify the resulting file plays correctly in an AAX-compatible player
Ensure you have the rights to convert the PDF content into an audiobook and AAX file