Comment PDF & Markup PDF Files

One of the big advantages of working with PDF is the ability to add comments in natural and familiar ways. In Nitro PDF Professional, comments can be notes, text highlighting, drawing markups and more. Most types of comments include a pop-up note for you to add a text message to them. (For more info on the full set of commenting tools to markup PDF file see the Nitro Pro 5.0 feature overview page.)

For example, if you've marked some text with the Highlighter Tool, to explain why you've highlighted it, just open its pop-up note and enter your feedback. All commenting and drawing tools are accessible from the Commenting toolbar.

Commenting features

• Add notes to pages just like paper sticky notes.
• Add text boxes straight on the page
• Insert drawings to markup parts of the page.
• Add freehand drawings on the page with the pencil tool.
• Group and sort comments to simplify the review cycle.
• Reply to comments from other authors.
• Show document status with pre-defined stamps.
• Attach audio comments.
• Attach other file types inside PDFs.

To open the Comments panel and view all comments, do one of the following:

• Select the Show/Hide Document panel  toolbar button, followed by the Comments panel  button.
• Choose View > Document panel > Comments.
• Use the F6 shortcut key, followed by the Comments panel  button.