In some* versions of Word, using the quick options for italicizing and bolding a font (indicated by the “I” and “B” in the toolbar), rather than using the actual italic or bold version of a font, can cause the font to be unstable and lead to unexpected outcomes when printed.
*When choosing the “I” or “B” in the toolbar in newer versions of Word, Word will automatically change to the true italic or bold version of the font when it’s available.
How to tell if the wrong version is used: “AGaramondPro-Regular” is the regular version of a font. When the quick tool for italics is used, the name of the font becomes, “AGaramondPro-Regular, Italic”. The true italicized version of the font is named, “AGaramondPro-Italic,” and does not contain, “Regular”.