GTH Font Library
The many PK fonts can be collected into one file as the font library. These font libraries have been used in the former MS-DOS version of dviout/dviprt. Usually, the file extension is gth.
For example, the 300 dpi PK font named cmr10.pk might be placed in the GTH file named c:\tex\fonts\pk300.gth. Then this can be specified by -TEXPK: as follows.
-TEXPK:c:\tex\fonts\pk300.gth^g^s.pk
However, .gth can be omitted in the above specification since it is automatically added by default.
Other font specifications can be used by using a semicolon ; as the delimiter. The font found first is used when searching from the beginning.