Other PDF Issues

How to Stop Adobe from Auto-Filling Email Addresses in Comments

Anum MushtaqAnum Mushtaq Oct 23, 2026 869 views

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.

How to Stop Adobe Acrobat from Auto-Filling Email Addresses with the @ Symbol
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.
Before you start

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.

Solution 1Recommended

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.

1
Access Preferences

Open Adobe Acrobat and navigate to 'Edit' > 'Preferences' on Windows, or 'Acrobat' > 'Preferences' on a Mac.

2
Review Commenting Settings

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.

3
Check Acrobat Online Settings

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.

Adjust Acrobat Commenting and Profile Preferences
Version Limitations: In recent versions of Adobe Acrobat, the @ mention feature is hardcoded for enterprise collaboration and cannot be entirely disabled via a single toggle. If this disrupts your workflow, using a different PDF editor may be the best workaround.
Clean & Private PDF Commenting

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. 1. Open your PDF in WPS: Launch WPS Office and open your PDF document using the WPS PDF tool.
  2. 2. Access Comment Tools: Click on the 'Comment' tab located at the top of the workspace to reveal the annotation toolbar.
  3. 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.
Clean interface with no forced @ mentions or intrusive contact auto-fillFully compatible with standard Adobe PDF formatting and annotationsLightweight, fast, and free to use for everyday tasksBuilt-in PDF editing, highlighting, and conversion tools
microsoft office alternative - wps office

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.