Valid_Conversions

   You can convert an input file to an output file that is of the
   same type: document, tabular, graphics, or image. The DDIF and
   Text converters support conversion between document file formats.
   The DTIF converters support conversion between tabular file
   formats.

   The Analysis output converter is a special type of document
   converter that produces formatted text output of the objects and
   values stored in the in-memory DDIF or DTIF format of an input
   file.

   The PostScript output converter also is a special type of
   document converter that supports conversion between all revisable
   file formats and final-form PostScript output.

   You can convert a tabular input file format to a document output
   file format. The domain converter provides this capability.

   You can convert a graphics or image input file to a compound
   document output file format that supports graphics and image
   elements.

   You can convert a compound document input file containing
   graphics or images to a graphics or image output file,
   respectively, but any text in the file is lost.

   If the CDA Converter Library or other third-party
   converters are installed, you can convert files among other
   popular file formats in addition to those supported by the 
   CDA Base Services converters.