The primary strength of TrueType was originally that it offered font developers a high degree of control over precisely how their fonts are displayed, right down to particular pixels, at various font sizes.
Each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts, graphics, and other information needed to display it. The Portable Document Format (PDF) is a file format used to present documents in a manner independent of application software, hardware, and operating systems. It has become the most common format for fonts on both the Mac OS and Microsoft Windows operating systems. TrueType is an outline font standard developed by Apple and Microsoft in the late 1980s as a competitor to Adobe's Type 1 fonts used in PostScript.
Application/pdf, application/x-pdf, application/x-bzpdf, application/x-gzpdf