Word macros (digital signature) certificate has expired

The information on this page applies to:
  • MathType for Windows
  • MathType for Mac
  • Microsoft Office 2007 and later (Windows)
  • Microsoft Office 2011 (Mac)

When using MathType with Microsoft Word, an alert message appears due to the expiration of the digital signature.

The alert message may be different depending on the version of Word:

  • Warning: the digital signature has expired.
  • SECURITY WARNING Some active content has been disabled, followed by another warning that macros have been disabled.

 Warning message SECURITY WARNING Some active content has been disabled  Warning message SECURITY WARNING Macros have been disabled

As a result, the MathType tab in Word is unusable until the macros are enabled.

A certificate with a digital signature is a measure of security because it verifies the macros as having come from a company that is who it claims to be. Our macro certificates expired on February 5th of 2021, which makes some features of MathType unusable in Word until they're enabled.

The macro file has not suffered any change and does not contain any security hazards. Therefore, as a workaround, allow Word to work MathType's macro while our Development team generates the new macro file properly signed. In order to allow Word to use MathType's macros, press or click the "Enable" button or setting that can be seen in the images above.