You can organize the comments in your Adobe® PDF document in a number of ways. By default, comments are listed in Adobe Acrobat® 8 as they appear in the document from start to end.
To complete this article, you will need the following software:
Basic knowledge of working with the commenting tools in Acrobat
Here are a few tips for organizing comments:

Figure 1: Sorting comments makes it simpler to locate those added by a specific author or a type of comment.

Figure 2: Filtering the comments shows only a subset of the total comments in the review document.
Note: Filtering does not apply to the comment replies. If you have added a series of comments and replied to other comments as well, sorting the comments by author displays only your original comments.

Figure 3: Sort comments by using internal checkmarks, a great method for organizing your work.
You can import comments only once; if you are working on several versions of a document, save copies and number them sequentially. That way, each time you send comments for a round of reviews you have a copy of the document that can accept comments.
Click Search on the Comments List toolbar to open the Search window at the left of the screen. Next, type the search term, specify capitalization and whole words, and click Search Comments. Once Acrobat processes the search, it displays the results in a list in the Search panel. Click the search result to highlight the comment in the Comments List and on the document page.
If you have a large number of comments addressing the same thing, you can group them together as one comment. Click the Hand tool on the Select & Zoom toolbar and click the first comment. Shift-click to select the others you want to include in the group. Select the comments from the list or directly on the document page. Then right-click (Control-click) the selected comments on the document page only, and choose Group (don’t right-click on the Comments List as the shortcut menu doesn’t contain the command). The comment displays the grouped icon on the Comments pane’s listing.
To ungroup the comments, right-click (Control-click) any of the comments in the group and choose Ungroup. Each then becomes a separate item in the Comments List. In a grouped comment, the comment’s status, text you add in notes, and any replies to the comments are shown only for the first comment you select—it is hidden for the other components in a grouped comment.
For more information about commenting in Acrobat 8, check out these other great tutorials:
Graphic designer, information developer, instructor, and author Donna Baker has written numerous books, including “Adobe Acrobat 7 in the Office” and “Adobe Acrobat 7 Tips and Tricks: The 150 Best.” She conducts workshops on Adobe Acrobat.
Excerpted from “Adobe Acrobat 8 How-Tos: 125 Essential Tips” by Donna Baker. Copyright © 2007 Donna Baker. Used with the permission of Pearson Education, Inc. and Peachpit. All rights reserved. For more information about this book, please visit peachpit.com.