We are using iText to create PDFs using a custom font and I am running into an issue with the unicode character 2120 (SM, Service Mark). The problem is the glyph is not in the custom font. Is there a way I can specify a fallback font for a field in a PDF? We tried adding a text field with Verdana so that the form had the secondary font embedded in it but that didn't seem to help.
First you just need to add substitutions fonts to the form:
AcroFields form = stamper.getAcroFields(); form.addSubstitutionFont(bf1); form.addSubstitutionFont(bf2);
Now the font defined in the form has preference, but if that font can't show a specific glyph,
it will look at
bf1, then at
bf2 and so on.