Can I delete a comment?

Be it PDF, image, video or an HTML file, you can delete comments made only by you. Mouse over a comment to see the ellipsis (three dots / more icon). Click the ellipsis to get options to Edit or Delete the comment. 

You cannot delete a comment made by another reviewer or teammate. No one can delete your comment or their own once it bas been responded to. Comments from previous versions can not be deleted.