| 1. | .pf | Private File (Aladdin Systems security software) |
| 2. | .pfa | Type 3 font file (unhinted PostScript font) |
| 3. | .pfb | Type 1 PostScript font (Adobe Type Manager) |
| 4. | .pfc | PF Component ◊ Personal Filing Cabinet (AOL) ◊ Text file (First Choice) |
| 5. | .pff | Paraform file for 3D modeling (Scandata) |
| 6. | .pfk | Programmable function keys (XTreePro) |
| 7. | .pfl | Portfolio (Lotus Freelance) |
| 8. | .pfm | Printer Font Metrics (Windows Type 1 font metric file) |
| 9. | .pfs | Database (PFS:FILE) - text file (PFS:Write) (First Choice) |
| 10. | .pft | Printer font (ChiWriter) |
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