Photoshop.js

var names = ['John Doe'];

for (var i = 0; i < names.length; i++) {
    app.activeDocument.activeLayer.textItem.contents = names[i];
    app.activeDocument.saveAs(
      new File('~/Desktop/' + names[i] + '.tif'), 10),
      new TiffSaveOptions(),
      true
    );
}