You can use the commands header or footer to add a footer or a header on any generated diagram.

You can optionally specify if you want a center, left or right footer/header, by adding a keyword. As for title, it is possible to define a header or a footer on several lines. It is also possible to put some HTML into the header or footer.

<uml t=“commons”> Alice → Bob: Authentication Request

header <font color=red>Warning:</font> Do not use in production. endheader

center footer Generated for demonstration </uml>

You can use the scale command to zoom the generated image. You can use either a number or a fraction to define the scale factor. You can also specify either width or height (in pixel). And you can also give both width and height : the image is scaled to fit inside the specified dimension.

• scale 1.5
• scale 2/3
• scale 200 width
• scale 200 height
• scale 200*100

<uml t=“commons_001”> scale 180*90 Bob→Alice : hello </uml>