Printer Font Binary (.pfb)
The PFB (Printer Font Binary) file extension is associated with Adobe's Type 1 fonts, primarily used in Windows operating systems. These files store font data in a compact binary format, which includes glyph data and encryption for protection. Introduced in the 1980s, PFB files were part of Adobe's PostScript technology, enabling high-quality digital typesetting. They work alongside PFM (Printer Font Metrics) files, which contain character measurements. PFB files are essential for precise font rendering in professional printing and digital design.