# Participate in a browser-based review

| Open the review PDF document in a web browser, and then use the tools from the Commenting toolbar to add comments.
| Note: In Adobe Reader, the commenting tools do not appear until a PDF document is authenticated. The authentication process may require several seconds; however, you can view the PDF document while you wait.
| On the Commenting toolbar, click Send And Receive Comments to upload your comments to the online document and to see other reviewers’ comments. Do this as many times as you like.
| To read other reviewers’ comments, select the Hand tool , and double-click the comment.
| When you are finished adding comments, click Send And Receive Comments again.

Note: If you experience problems opening a PDF document in a browser-based review, your Reviewing preferences may be incorrect or not account for a firewall, or you may be disconnected from the network. Consult your network administrator for the appropriate settings, or review the document offline.

You may also want to:

Participate in a browser-based review offline

Reply to comments

Change the appearance of comments

Comment and Markup

Participating in a browser-based review in complete Help