Replies to comments are especially useful in shared and browser-based reviews, when participants can read each others’ comments. They can also be used by review initiators to let reviewers know how their suggestions are being implemented. When one or more reviewers reply to a comment, the set of replies is called a thread. All replies in a thread appear in the pop-up note and in the Comments List. Replies are indented below the original comment. The number of replies that a comment has received appears in a box when you place the pointer over the comment.

Reply in the pop-up note
Reply in the Comments List
in
the navigation pane.
.
Delete a replyIf you delete a comment that’s been replied to, only the comment is deleted. Any replies remain in the PDF, but they are no longer part of a thread. These replies may be difficult to view in the PDF because they are stacked. You may want to view them in the Comments List.
Do one of the following:In the note pop-up, right-click/Control-click the reply and choose Delete This Reply.
Select the reply in the Comments List and then click the trash icon in the Comments List toolbar.