| pdcdm | Sybase PowerDesigner Conceptual Data Model |
| pde | AFP Page Definition |
| pde | FlexPDE Script |
| pde | Pathology Data Exchange File |
| pdef | Protean Data Exchange Format Data |
| pdex | Orient Computer Encrypted Data |
| pdg | MetaCAM Part Data |
| pdg | Print Designer GOLD Data |
| pdic | Personal Dictionary Database |
| pdj | Pioneer CDJ-1000MK3 Index Data |
| pdm | Sybase PowerDesigner Physical Data Model |
| pdoc | SAM grabdp Data |
| pdom | Eclipse IDE PDOM Index |
| pdp | Business Plan Pro Plan Conponent |
| pdpcmd | Pdplayer Command |
| pdpcomp | Pdplayer Composition |
| pdr | Mail.dat Piece Detail File |
| pdrp | DNA Screening Crystals Data |
| pdt | GEUS Polar Data |
| pdt | ProCite Database |
| pdtex | PDF-XChange Editor Data |
| pdtt | STK Processed Terrain File |
| pdu | SMS Protocol Description Unit |
| pdv | Velocity Process Data |
| pdvr | QuickDraw GX Printer Driver |
| pdx | ProCite Database Index |
| pdx | Product Data eXchange File |
| pdxl | PDXpert PLM License Data |
| pdz | GZipped Brookhaven Protein DataBase |
| pe | STK Planetary Ephemeris File |
