Arbortext Command Language > set Command Options > set encodemediafilenames
  
set encodemediafilenames
set encodemediafilenames= { on | off}
The encodemediafilenames option controls whether filenames of media objects, for example graphics, may be encoded to remove non-ASCII characters.
Encoded filenames are longer than their original versions and may exceed Windows maximum file path lengths. This can cause issues with copy and move actions during publishing.
The default value is on.
* 
A publish to RTF action may have issues with non-ASCII filenames. PTC recommends that you enable the Embed graphics option in your Arbortext Styler stylesheet if encoding is disabled for RTF publishing.