using script fonts

[scottbarrow]

I have a PDF which works fine using pdf-forms to fill in the fillable fields, however I'd like to make one of the fields (signature) a script font, i've embedded a few different types of fonts open fonts, true types etc.. whenever pdf-forms fills in that field the export becomes corrupt.
Is there a reason this might be, do script fonts need to be treated differently?
Thanks for the great gem!