Send & Receive Issues

Fix Outlook Hanging When Sending AcroForms from Acrobat

Jason MillerJason Miller Oct 23, 2026 868 views

Question details

Microsoft Outlook freezes or becomes completely unresponsive when attempting to send an AcroForm using Adobe Acrobat's built-in email features.

How to Fix Outlook Hanging When Sending AcroForms from Acrobat
Product
Microsoft Outlook and Adobe Acrobat
Device & OS
Windows
Scenario
Sending an AcroForm via email directly through the Adobe Acrobat Document Cloud interface.
Observed behavior
Outlook hangs, freezes, or fails to respond during the email sending process, preventing the form from being dispatched.
Before you start

Ensure you have saved all ongoing work in both your PDF documents and Microsoft Outlook, and close any unnecessary background applications to prevent data loss while troubleshooting.

Solution 1

Update Adobe Acrobat and Microsoft Office

Software bugs that cause freezing and integration issues are frequently resolved in the latest official software updates.

1
Check for Acrobat updates

Open Adobe Acrobat, click on the 'Help' menu at the top of the window, and select 'Check for Updates'. Follow the prompts to install any available patches.

2
Check for Office updates

Open Microsoft Outlook, go to 'File' > 'Office Account', click on the 'Update Options' button, and choose 'Update Now' from the drop-down menu.

3
Restart your computer

Once both applications are fully updated, restart your Windows computer to ensure all new configuration files are correctly applied.

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  1. 1. Download WPS Office: Visit the official WPS Office website and download the free installation package for your Windows device.
  2. 2. Install the suite: Run the downloaded installer and follow the simple on-screen instructions to complete the setup process.
  3. 3. Open and share PDFs seamlessly: Launch WPS Office, open your PDF form, and use the built-in email sharing features to dispatch documents without encountering external app freezing issues.
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Frequently Asked Questions

Why does Microsoft Outlook hang when sending attachments from other applications?

This usually occurs due to conflicts with the MAPI (Messaging Application Programming Interface) protocol, outdated software versions, or restrictive security settings in the sending application that interrupt the background communication with Outlook.

Will disabling Adobe Acrobat's Protected View put my computer at risk?

Yes, leaving Protected View disabled long-term can make your computer vulnerable to potentially malicious scripts embedded in downloaded PDF files. You should only disable it temporarily for troubleshooting purposes and re-enable it immediately afterward.

Can I use a different email client to send AcroForms?

Yes. If Outlook continues to freeze, you can change your default email client in your Windows settings. Alternatively, you can save the filled AcroForm to your desktop and manually attach it to an email using your webmail interface.

What exactly is an AcroForm?

An AcroForm is an interactive PDF form format created in Adobe Acrobat. It contains digital fields such as text boxes, checkboxes, and radio buttons, allowing users to input data directly within the PDF document.