Hi @NK
Welcome to Microsoft Q&A! Thanks for posting the question.
You can leverage the aquaforest connector - "get text from pdf" action or cloudmersivepdf connector - "get text in a pdf document by page" action.
I do see Adobe PDF Services connector which have the Capabilities to export PDF documents to other formats such as Microsoft Office, text, and images. You can also try convert pdf to word action and see if it helps you.
Note: You need to contact the publisher if you need any support with the usage/issue of the above connector. The Contact URL is mentioned in the respective connector document.