ksoltys, I had a recipe that I wanted to share with the family, but the original was a scanned PDF of a rather smudgy page that I didn't want to share. I was able to convert it text and edit it in Word, then save it as a much cleaner and smaller PDF.
Details are too long to post here so I put them on my blog.
https://coredump3.blogspot.com/2024/01/converting-image-of-text-into-editable.html
You could probably do this directly in Acrobat Pro or other tools but these are what I had on hand.