Making a font look worn

I'm designing the layout of an RPG manual. I want to use Adobe Jenson for the body text typeface, but I really love the corroded look of Celestia Antiqua Std (pic related) that was used in Dungeons & Dragon's 3rd edition. Is there a way to add something like that to an existing font? I'd consider other humanist/Venetian old style fonts like Adobe Jenson that already have this quality, but I really like Adobe Jenson.