How to Change One Font to Another in All Styles Using a Script

Hi ​@marikap3737523 , If you want to change all of the document’s paragraph styles to the same applied font, then maybe something like this:

var f = app.fonts.itemByName("Minion Pro	Regular");
app.documents[0].paragraphStyles.everyItem().properties = {appliedFont:f}

Note that the name string has to be exact, in the above example there is a tab between Minion Pro and Regular

Hi ​@marikap3737523 

Isn't the native function (find font) sufficient? If you tick the appropriate checkbox, you’ll replace the font in the style definition.