/// <summary>
/// Sets the additional action when some event occurred for the pdf.
/// </summary>
/// <param name="doc">The document.</param>
/// <param name="actionType">Type of the action.</param>
/// <param name="action">The action.</param>
public static void SetAdditionalAction(this PdfDocument doc, PdfName actionType, PdfDictionary action)
{
if (doc == null)
{
throw new ArgumentNullException("doc");
}
if (actionType == null)
{
throw new ArgumentNullException("actionType");
}
var oldAA = doc.ResolveObject <PdfDictionary>("/AA");
if (oldAA == null)
{
oldAA = new PdfDictionary();
doc.Internals.Catalog.Elements["/AA"] = oldAA;
//doc.Internals.AddObject(oldAA);
//doc.Internals.Catalog.Elements["/AA"] = PdfInternals.GetReference(oldAA);
}
if (action == null)
{
oldAA.Elements.Remove(actionType.Value);
}
else
{
oldAA.Elements[actionType.Value] = action;
}
}