How to Prevent the Comments Window from Opening Automatically in a PDF
Question details
The user wants to stop the comments pane from automatically opening when opening a PDF file that contains comments.

- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Opening a PDF document that has existing user comments or annotations.
- Observed behavior
- The comments window or pane expands automatically alongside the document, which can obstruct the reading view.
Ensure your PDF application is updated to the latest version, as older versions may have slightly different menu layouts for preference settings.
Disable the Auto-Open Comments Pane in Acrobat Desktop
Change your application preferences to prevent the comments pane from showing up automatically when opening PDF files locally.
By modifying the built-in preferences of your desktop application, you can force the software to keep the comments panel hidden until you manually choose to open it.
Launch the Adobe Acrobat desktop application. Navigate to the top menu, click on 'Edit' (Windows) or 'Acrobat' (Mac), and select 'Preferences'.
In the Preferences window, look at the left-hand menu and select the 'Commenting' category.
Locate the checkbox labeled 'Show comments pane when a PDF with comments is opened' and clear it.
Click the 'OK' button at the bottom of the window to apply and save your new settings.

Hide Comments Preview in Acrobat Online
Adjust your profile settings in the web version to keep the comments panel hidden by default.
Enjoy a Clean PDF Reading Experience with WPS Office
If you are tired of intrusive pop-ups and side panels, WPS Office offers a built-in PDF reader that provides a streamlined, distraction-free environment. You can easily view, manage, and hide comments exactly when you need them.
- 1. Open your PDF in WPS Office: Launch WPS Office and open your PDF document. The file will load cleanly in the main window without automatically expanding any side panels.
- 2. Access the Comment Tab: When you are ready to review annotations or leave your own feedback, click on the 'Comment' tab located in the top ribbon.
- 3. Toggle the Comments Pane: Click the 'Comment Panel' button on the top left of the workspace to manually display or hide the list of annotations according to your preference.

Frequently Asked Questions
Will disabling the comments pane delete the comments from my PDF?
No, changing this preference only hides the comments window from popping up automatically. All comments and annotations remain safely stored in the document.
How do I manually view comments after disabling the automatic pane?
You can manually open the comments pane at any time by clicking the Comment icon on the right-hand toolbar or navigating to the View or Comment tab in your PDF reader.
Can I hide comments permanently when printing a PDF?
Yes, when printing a PDF, you can usually choose to print 'Document' instead of 'Document and Markups' in the print dialog box to ensure comments are not printed on the page.
Why do comments open automatically by default?
PDF applications often enable this setting by default so that users do not miss important feedback, annotations, or review notes left by others in collaborative documents.




