/// <summary>
/// Get text field font size
/// </summary>
/// <param name="acroFields">AcroFields</param>
/// <param name="fieldName">Text field name</param>
/// <returns>text field font size</returns>
public static float GetFontSize(AcroFields acroFields, string fieldName)
{
if (acroFields.GetFieldType(fieldName) == AcroFields.FIELD_TYPE_TEXT)
{
// need the dictionary field appearance
var pdfDictionary = acroFields.GetFieldItem(fieldName).GetMerged(0);
var pdfString = pdfDictionary.GetAsString(PdfName.DA);
if (pdfString != null)
{
var daNames = AcroFields.SplitDAelements(pdfString.ToString());
float size;
return(daNames[1] != null &&
Single.TryParse(daNames[1].ToString(), out size)
? size : 0f);
}
}
return(0f); // text field auto-sized font
}