You can specify attributes for the <img> tag in either of the following ways:
To specify <img> tag attributes in the configuration file (for example):
[GraphAttr] ; Graphic file name (with or without extension) = desired attributes ch01f853.gif= usemap="#schematic" border="0"
To eliminate borders from all graphics:
[GraphAttr] *= border="0"
You can define a PI marker that has a name beginning with Graph and ending with the name of a valid <img> tag attribute (see §38.3 Adding attributes with PI markers). The content of the marker becomes the value of the attribute for the next image in your document. The PI marker overrides any configuration-file setting for the same attribute for that image. See §42.2 Overriding settings with PI markers or macros.