Copy all of the .php and .z files to the folder [path to mpdf]/mpdf/fonts/
(This link may do the job for you)
Add the font names to config_fonts.php (and if appropriate to config_cp.php)
You have now completed font file generation for the codepage Type 1 font files.
If you do not want to create the Unicode TrueType font files you can stop here, or optionally you can tidy up which will delete all the font files except your .ttf files from the current directory.
Now we will create the Unicode TrueType font files.
NB This will also delete any remaining .php and .z files from the current directory.
To continue with Unicode TrueType font files, execute Step 5