Can you configure DNG converter to only convert the RAW files in a folder (and skip the JPG's?)

I just downloaded DNG converter last night to convert the CR2 (raw) files from my Canon S100.  I like that it converts a folder at a time...However, it also converts the JPG files as well, which I don't want it to do. 

I did not see a way of specifying which types of files or convert (or omit from the convert).  Is there a way?

Thanks in advance.

John