Other PDF Issues

Fix Cannot Send a PDF as an Email Attachment After Acrobat Update

Ayan MasoodAyan Masood Nov 3, 2026 868 views

Question details

The user is unable to send a PDF document directly as an email attachment using the built-in feature after installing a software update.

How to Fix Cannot Send a PDF as an Email Attachment After an Acrobat Update
Product
Adobe Acrobat
Device & OS
not provided
Scenario
Attempting to use the 'Send File' or 'Send as Attachment' function to quickly email a PDF document.
Observed behavior
The feature fails to attach the PDF to the default email client, or an error message interrupts the workflow.
Before you start

Ensure that your default email application (such as Microsoft Outlook or Windows Mail) is properly installed, logged in, and set as the default mail client in your operating system settings.

Solution 1Recommended

Verify Email Account Preferences

Software updates can sometimes reset default settings, preventing the application from identifying your default email client.

Reconfiguring the email account directly within the application's preferences often restores the connection between the PDF software and your email client.

1
Open Preferences

Launch your PDF application and navigate to Edit > Preferences from the top menu bar.

2
Access Email Accounts

In the Preferences dialog box, look at the left sidebar and select the Email Accounts category.

3
Configure Default Client

Check if your preferred email application is listed and marked as default. If it is missing, click the Add Account button to reconfigure it, then restart the application.

Verify Email Account Preferences
Quick Tip: If you use a webmail service like Gmail, you can also add it here by entering your email address and authorizing the connection.
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  1. 1. Open your PDF in WPS Office: Launch WPS Office and open the PDF file you wish to send.
  2. 2. Click the Share button: Navigate to the top toolbar and click on the 'Share' or 'Email' icon.
  3. 3. Select Email Attachment: Choose the option to send as an email attachment. WPS will automatically open your default mail client with the PDF attached.
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Frequently Asked Questions

Why does my PDF not attach to emails after updating?

Software updates can sometimes reset default application preferences or disrupt the registry keys that allow your PDF reader to communicate with your default email client.

How do I set my default email client in Windows?

Go to Windows Settings > Apps > Default apps. Look for the Email section and select your preferred application, such as Outlook or Mail, to ensure other programs can use it to send attachments.

Does the version of Microsoft Office affect PDF email features?

Yes, if you are using an older or mismatched bit-version (e.g., 32-bit Office with a 64-bit PDF application), it can cause integration failures when trying to send attachments.

What should I do if the 'Send File' button is greyed out?

A greyed-out button usually indicates that no default email account is configured in the application preferences or that your IT administrator has restricted the feature. Check your email account settings within the PDF software.