Electronic signatures in Adobe's this application use Adobe's latest EchoSign service, it can track files for the users. You can use highlight, underline, strikethrough, etc., and you can also add comments and form comments.
Adobe not only updated the mobile platform application, but also added the EchoSign service for the desktop Reader, allowing users to add images and sign on the touch screen. And the above update is completely free of charge. What's more about pdf: word to pdf mac.