in app/redact/TextFinder.scala [28:32]
def findEmail(document: PDDocument): List[FoundText] = {
val textFinder = new RegexFinder("""([a-zA-Z0-9\.!#$%&'*+/=?^_`{|}~-]+)@([a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*)""".r)
textFinder.getText(document)
textFinder.locations.result()
}