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That's done using JS functions that ship with Acrobat. Create your
field in Acrobat with the format and copy the JS to
iText.
How do you apply a format category to a fillable
PDF field? I know how to use iText get the field, set the field value, and add
_javascript_ to do things like make the field read-only, apply character limits
and setting actions to highlight fields, but I can't find any information
about how to apply a format category using either iText or Acrobat _javascript_.
To be honest, I can't even find references to it in the Acrobat _javascript_
reference. Anyone know how do this?
Thanks,
Steve
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