How to automatically highlight and save the search keyword in a pdf? How to dynamically highlight and save, the keyword searched in a pdf document, with the Preview application?

For example, I want to highlight all the 'Apple' keyword in a document and save it, so when I open the document again, I see all the 'Apple' keywords are highlighted.
Preview already highlights all the words it found using search.

You can not save the document as such (showing the found words).