Jaguar has an internal keyword jdft for DC-DFT in a form of post-SCF DFT evaluation. 

For a HF-PBE/aug-cc-pVTZ calculation, the &gen section looks like:

&gen

jdft=9490

basis=cc-pvtz++

&

We have not tested it out for this version yet. 

This is only a guideline based on the manual.

The jdft keyword in Jaguar 7.X has changed to pdftname keyword. 

Instead of using idft format, you can just use the dftname formatting. 

So the &gen section of a HF-PBE/aug-cc-pVTZ calculation would look like: