How to Stop Adobe from Auto-Filling Email Addresses in Comments
Question details
The user wants to disable the feature in Adobe Acrobat that automatically suggests or inserts email addresses when typing the @ symbol in PDF comments.

- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Adding text or notes to a PDF document using the commenting tools.
- Observed behavior
- Typing the @ symbol triggers an automatic pop-up that suggests or inserts multiple synced email addresses from the user's contacts.
Determine whether you are using the Adobe Acrobat desktop application, Acrobat Reader, or an Acrobat Online Service, as the settings to disable contact auto-suggestions vary depending on the platform.
Adjust Acrobat Commenting and Profile Preferences
The @ mention feature is tied to Adobe's collaborative commenting and contact suggestions. Adjusting your online profile preferences or desktop settings can minimize or stop these prompts.
Because Adobe heavily integrates cloud collaboration, the @ mention suggestions are pulled from your Adobe Document Cloud contacts or enterprise directory. Managing these synced contacts is the primary way to stop unwanted auto-fills.
Open Adobe Acrobat and navigate to 'Edit' > 'Preferences' on Windows, or 'Acrobat' > 'Preferences' on a Mac.
Select the 'Commenting' category from the left-hand menu. Look for any active settings related to sharing, mentions, or auto-complete, and uncheck them if available.
If you use Acrobat Online Services, log into your Adobe account via a web browser. Navigate to your Profile and Privacy settings to disable contact syncing or automatic directory suggestions.

Edit and Comment on PDFs Freely with WPS Office
If Adobe Acrobat's forced auto-fill and @ mention features disrupt your workflow or raise privacy concerns, try WPS PDF. It offers a clean, straightforward commenting system without unwanted pop-ups or forced contact syncing.
- 1. Open your PDF in WPS: Launch WPS Office and open your PDF document using the WPS PDF tool.
- 2. Access Comment Tools: Click on the 'Comment' tab located at the top of the workspace to reveal the annotation toolbar.
- 3. Add Notes Uninterrupted: Select 'Text Comment' or 'Note' and type freely. Using the @ symbol will function as normal text and will not trigger intrusive email suggestions.

Frequently Asked Questions
Why does Adobe Acrobat suggest emails when I type the @ symbol?
Adobe implemented the @ mention feature to facilitate enterprise collaboration and quick document sharing. When you type @, it actively searches your synced contacts or organization directory so you can tag specific users in your comments.
Can I disable @ mentions globally in Adobe Reader?
Currently, Adobe does not provide a global toggle to completely disable @ mentions in its free Reader version, as the feature is deeply integrated into their cloud-based collaboration ecosystem.
Are my contacts shared with Adobe when it auto-fills?
The auto-fill suggestions pull from the contacts synced with your Adobe Document Cloud account, your device's address book (if permission was granted), or your enterprise directory if you are on a company network.




