| Portable Compiled Format | |
|---|---|
| Filename extension |
.pcf |
| Internet media type | application/x-font-pcf |
| Developed by | X.Org Foundation |
| Type of format | Bitmap font format |
| Open format? | yes |
| Website | The X11 PCF bitmap font file format |
Portable Compiled Format (PCF) is a bitmap font format used by X Window System in its core font system, and has been used for decades. PCF fonts are usually installed, by default, on most Unix-based operating systems, and are used in terminals such as xterm. PCF fonts replaced Bitmap Distribution Format due to a slight efficiency increase, however most applications have moved on to scalable fonts.1