You run searches to find specific items in PDFs. You can run a simple search, looking for a search term within a single file, or a more complex search, looking for various kinds of data in one or more PDFs. You can search using either the Search window or the Find toolbar. Acrobat searches the PDF body text, layers, form fields, and digital signatures in either case. You can also include bookmarks and comments in the search. Only the Find toolbar includes a Replace With option.