This section determines how image file names are created. Leave Use A Random Name selected to use the normal method of name creation.
If you want the name to be based upon the contents of one of the data fields then select Use Data From Field and select the desired field. Each time you add a field to the database it will also be added to the drop-down for selecting the image file name source. Therefore it is best to add all the fields first, then select the one you want to us as the name source. Bear in mind that this field will be uniquely indexed, so that no two badge image files are given the same name. So make sure you select a field which is not going to need to contain duplicate data, because such duplication will not be allowed.
Note that if you create a badge and add photo to it before filling in the field used to supply the name, then a random name will be used instead. Also note that once the name is created by creating an image file, changing the contents of the source field will have no effect on the file name.