What are the needs for document keyword extraction, as use cases in industries

I have a tool for automated keyword extraction from documents (PDFs, Word, emails, etc.), but lack of understanding on which industries or customer types it can be the most useful. This I have worked on for the past few years now.

It can automatically extract relevant topics, keywords, or tags from unstructured text: useful for searchability, classification, or even summarization.

So far, I’ve identified some potential areas:

* HR: screening CVs * Legal firms: tagging case files, contracts * Customer support: summarizing and tagging tickets or emails * Compliance teams – scanning documents for risk terms or policies

Maybe something you have from your own experience or current problems can be shared?