How to Fix Locked Add Text Comment Properties in Adobe Acrobat
Question details
The user is unable to modify the default properties of the Add Text Comment tool because the lock option is selected and grayed out.

- Product
- Adobe Acrobat Pro XI / DC
- Device & OS
- not provided
- Scenario
- Attempting to modify and save the default text styling and properties for the Add Text Comment tool in a PDF document.
- Observed behavior
- The lock option in the tool's properties is checked but disabled (grayed out), preventing the user from changing or saving new default text properties.
Before attempting workarounds, verify whether this issue happens with every PDF or only a specific document, as restricted file permissions can automatically disable commenting tools.
Verify PDF Document Security Settings
Check if the document author has restricted commenting permissions, which causes the text properties panel to be disabled.
Open the problematic PDF file, navigate to the 'File' menu, and select 'Properties'.
Click on the 'Security' tab at the top of the Document Properties dialog box.
Look for 'Commenting' in the Document Restrictions Summary list and ensure its status is marked as 'Allowed'.

Set Defaults in a New Unlocked Document
Use a blank or unrestricted PDF file to bypass the software bug and establish new default properties for your text comments globally.
Update or Reinstall the Application
Since locked property panels are a known bug in certain builds of Acrobat Pro XI and DC, applying the latest software patches may resolve the issue permanently.
Easily Add and Customize Text Comments in WPS PDF
Avoid frustrating software glitches and easily manage your PDF annotations with WPS Office. WPS PDF provides a lightweight, user-friendly interface to add, edit, and format text comments seamlessly without locked property bugs.
- 1. Open Your PDF: Download and install WPS Office, then open your PDF file using the WPS PDF editor.
- 2. Access Comment Tools: Navigate to the 'Comment' tab located on the top ribbon menu.
- 3. Add Text Comment: Click 'Text Comment' and click anywhere on the document page to start typing.
- 4. Customize Properties: Highlight your text and use the right-side properties panel to instantly change fonts, sizes, and colors without dealing with locked dialog boxes.

Frequently Asked Questions
Why is the lock checkbox disabled on my PDF text comments?
The lock checkbox is typically disabled if the document has strict security restrictions that prevent commenting, or it may be due to a known software bug in specific software versions like Acrobat Pro XI and DC.
How do I unlock a PDF to allow commenting?
If you have the permission password, go to File > Properties > Security, change the Security Method to 'No Security', and enter the password. This will remove restrictions and unlock commenting features.
Can I change text comment properties without opening the properties dialog box?
Yes. In modern PDF editors like WPS PDF, you can change text properties directly from a quick formatting toolbar or sidebar that appears when you highlight the text, bypassing the need for a separate dialog box.




