It seems the only way how to convert Corel PrintOffice drawings (.cpd) to common JPEG format would be to use CorelDRAW graphics suite. No other program probably supports the CPD format.
There also exist .cpd graphics format used by PhotoDefiner for macOS / OS X, but the program does not support direct support to JPEG, only alternative formats so you would require two-step conversion to achieve that exact cpd to jpeg conversion.