4 ms·I may be wrong, but I believe there's a feature in Kinde 2 DX that allows you to do that.by jimmyjim 17y agoI may be wrong, but I believe there's a feature in Kinde 2 DX that allows you to do that.elq 17y agothe DX cannot highlight or annotate pdf files, at least not currently.fortes 17y agoNot sure about underlining, but highlighting and annotating has been there since Kindle 1.