Merge 2c6988f into cda7eed

michaelDCurran · web-flow · commit eaf8b8460328 · 2025-05-06T08:37:13.000+08:00
diff --git a/source/NVDAObjects/IAccessible/adobeAcrobat.py b/source/NVDAObjects/IAccessible/adobeAcrobat.py
@@ -171,13 +171,19 @@ def _getNodeMathMl(self, node: IPDDomElement) -> str:
 
 	def _get_mathMl(self) -> str:
 		"""Return the MathML associated with a Formula tag"""
-		# There are two ways that MathML can be represented in a PDF:
+		# There are three ways that MathML can be represented in a PDF:
 		# 1. As a series of nested tags, each with a MathML element as the value.
 		# 2. As a Formula tag with MathML as the value (comes from MathML in an Associated File)
+		# 3. As a custom Microsoft Office attribute (MSFT_MathML) on the Formula tag.
 		if self.pdDomNode is None:
 			log.debugWarning("_get_mathMl: self.pdDomNode is None!")
 			raise LookupError
 
+		# First, fetch and return the MSFT_MathML attribute if it exists.
+		math = self.pdDomNode.GetAttribute("MSFT_MathML", "MSFT_Office")
+		if math:
+			return math
+
 		# see if it is MathML tagging is used
 		for childNum in range(self.pdDomNode.GetChildCount()):
 			try:
diff --git a/user_docs/en/changes.md b/user_docs/en/changes.md
@@ -85,6 +85,7 @@ Please responsibly disclose security issues following NVDA's [security policy](h
 * Added a general setting to prevent the display turning off during say all or reading with braille.
 This option is enabled by default, but may result in increased battery depletion. (#17649, @LeonarddeR)
 * NVDA is now translated into Bosnian. (#17953)
+* In Adobe Acrobat, NVDA can now read and interact with math equations in PDF documents generated by recent versions of Microsoft Word. (#18056)
 
 ### Changes
 
