What are the top free apps for pdf converter?

I’ve got scanned receipts saved as PDFs on my Android phone and need to turn them into Word docs for a class project, so I’m looking for free converter apps people actually trust.

I had good results with Microsoft Lens for scanning receipts, and it can export the text to Word without much fuss. For PDFs you already have, I’d try Adobe Acrobat’s free app first, though scanned pages may need OCR and the formatting can shift.