Search Operations Find and search in PDFs. TopicsSearching DocumentsfindString(_:withOptions:)beginFindString(_:withOptions:)beginFindStrings(_:withOptions:)findString(_:fromSelection:withOptions:)isFindingcancelFindString() See AlsoWorking with Selections and Searchesselection(from:atCharacterIndex:to:atCharacterIndex:)selection(from:at:to:at:)selectionForEntireDocument