New Post: Force Ghostscript to load all fonts

You can modify the Ghostscript options inside the delegates.xml file. Copy all the xml files from the following directory: %TEMP%\Magick.NET.7.0.0.00XX to your own directory. Then edit the delegates.xml and add the extra options in all the 'ps:' decode entries. Make sure you call 'MagickNET.Initialize' with your new directory at the start of your program.

It is also possible that your machine just requires a reboot. This has solved many font issues for me and other users of Magick.NET