The only pds to mp4 conversion that would make sense is an export of .pds projects from Cyberlink PowerDirector and export them to a MPEG-4 format, which includes MP4, M4A or M4V file types. No other pds to mp4 conversion is known to us, if you are looking for something particular, let's us know in the discussion below.
Convert Cyberlink PowerDirector project to MPEG-4 video file format.
We found one software available in the database for this conversion.
Microsoft Windows software - convert pds to mp4 on Windows
Suite of tools for video editing
Convert from pds 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.