| .PCT | Apple | Page Layout Files | Macintosh PICT Format | Adobe Photoshop Elements | Adobe Systems Incorporated |
| .PDD | Adobe Systems Incorporated | Raster Image Files | Adobe PhotoDeluxe Image | Adobe Photoshop Elements | Adobe Systems Incorporated |
| .PEF | Pentax | Camera Raw Files | Pentax Digital Camera Raw Image Format | Adobe Photoshop Elements | Adobe Systems Incorporated |
| .PICT | Apple | Page Layout Files | Macintosh PICT Format | Adobe Photoshop Elements | Adobe Systems Incorporated |
| .PIXAR | Pixar | Raster Image Files | Pixar Image File | Adobe Photoshop Elements | Adobe Systems Incorporated |
| .PJP | Joint Photographic Experts Group | Raster Image Files | JPEG Image | Adobe Photoshop Elements | Adobe Systems Incorporated |
| .PMG | Adobe Systems Incorporated | Vector Image Files | PageMaker Group File | Adobe Photoshop Elements | Adobe Systems Incorporated |
| .PNG | The Pixelmator Team | Raster Image Files | Portable Network Graphics | Adobe Photoshop Elements | Adobe Systems Incorporated |
| .PSA | Epic Games | 3D Image Files | Unreal Engine Skeletal Animation File | Adobe Photoshop Elements | Adobe Systems Incorporated |
| .PSD | Adobe Systems Incorporated | Raster Image Files | Adobe Photoshop Document | Adobe Photoshop Elements | Adobe Systems Incorporated |
| .PSE | Adobe Systems Incorporated | Raster Image Files | Photoshop Elements Photo Project | Adobe Photoshop Elements | Adobe Systems Incorporated |
| .PSF | Adobe Systems Incorporated | Settings Files | Photoshop Proof Settings File | Adobe Photoshop Elements | Adobe Systems Incorporated |
| .PSP | Corel Corporation | Raster Image Files | PaintShop Pro Image | Adobe Photoshop Elements | Adobe Systems Incorporated |
| .PXR | Pixar | Raster Image Files | Pixar Image File | Adobe Photoshop Elements | Adobe Systems Incorporated |
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