It is necessary to use MathType to convert WMFs or PDF/PICTs on the receiving platform in order for them to appear correctly. If the equations were created in MathType, saved as individual files, and inserted or placed into a document, they may be WMFs, PDF/PICTs, Encapsulated PostScript (EPS), or Graphics Interchange Format (GIF) files and did not use OLE. If equations were embedded into a document by using Object Linking and Embedding (OLE), i.e., by using a toolbar button in Microsoft Word or PowerPoint, using an Insert Equation, Insert Object, or Insert OLE Object command, or via copy-and-paste, the equations are PDF/PICTs or WMFs.
