The most powerful of the AutoTag programs. It maintains valuable general information about a drawing. By using drawing tags, basic information about a drawing is automatically maintained. Unlike the other AutoTag versions that maintain two drawing tags, AutoTag Professional maintains eighteen different drawing tags. Twelve of the tags are updated when a drawing is saved, while the remaining six are updated when the plot or preview commands are used. The data maintained by AutoTag Professional is; drawing name, editor's identification, project/Job number, sheet size, plot scale, save date, save time, plot date, plot time, attached/overlaid external references, attached images, and custom DIESEL formulas.