PowerPoint 2010 Equations are transformed to images during save operation in the latest version of Aspose.Slides (v6.4.0).
Code to reproduce the issue:
var presentation = new PresentationEx(@“Equation.pptx”);
The ‘Equation.pptx’ file was created using PowerPoint 2010.
Opening ‘Equation.pptx’ in PowerPoint 2007 and saving will not convert the equation to image (this is the desired behavior).