•  Fdvips -mode ibmvga -D 110 -f %%1 -pp %%2  > tex4ht.ps 
 Fconvert -crop 0x0 -density 110x110 -transparency '#FFFFFF' tex4ht.ps %%3 
  • The specialized scripts may, for instance, maintain global caches of gifs for cutting down on recompilation time.