According to the fontinst package documentation "Font installation software for TeX" by Jeffrey, A. et.al. it is necessary to create: 1st) the tex font metric file (tfm) with the pltotf program from the property list (pl) files, and 2nd) the tex font metric file (tfm) with the vptovf program from the virtual font (vpl) files.
This is also visualized by the authors cover picture:
Why should one do the tfm file generation twice, since the tfm files are overwritten during that process? If the overwriting should not happen, how should I avoid this?
I am in the process of installing a Type 1 font that I got from somewhere. The result is that I get only black squares in the final pdf. Unfortunately I am not able to use XeTeX or LuaTeX since I must use the animate package.