It appears that this conversion represents a standard workflow in Print Shop desktop publishing software, i.e. export of .pdl projects to .pds graphics. As far as we know, Print Shop is the only software capable of this pdl to pds conversion.
Convert Print Shop Deluxe project file to Print Shop graphic image.
We found one software available in the database for this conversion.
Microsoft Windows software - convert pdl to pds on Windows
A desktop publishing software developed by Broderbund Software
Convert from pdl file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.