public static Version GetInstance()
{
if (version == null) {
version = new Version();
try {
Type type = Type.GetType("iTextSharp.license.LicenseKey, itextsharp.LicenseKey");
MethodInfo m = type.GetMethod("GetLicenseeInfo");
String[] info = (String[])m.Invoke(Activator.CreateInstance(type), null);
if (info[3] != null && info[3].Trim().Length > 0)
{
version.key = info[3];
}
else
{
version.key = "Trial version ";
if (info[5] == null)
{
version.key += "unauthorised";
}
else
{
version.key += info[5];
}
}
if (info[4] != null && info[4].Trim().Length > 0)
{
version.iTextVersion = info[4];
}
else if (info[2] != null && info[2].Trim().Length > 0)
{
version.iTextVersion += " (" + info[2];
if (!version.key.ToLower().StartsWith("trial"))
{
version.iTextVersion += "; licensed version)";
}
else
{
version.iTextVersion += "; " + version.key + ")";
}
}
// fall back to contact name, if company name is unavailable
else if (info[0] != null && info[0].Trim().Length > 0)
{
version.iTextVersion += " (" + info[0];
if (!version.key.ToLower().StartsWith("trial"))
{
// we shouldn't have a licensed version without company name,
// but let's account for it anyway
version.iTextVersion += "; licensed version)";
}
else
{
version.iTextVersion += "; " + version.key + ")";
}
}
else
{
throw new Exception();
}
} catch (Exception) {
version.iTextVersion += " (AGPL-version)";
}
}
return version;
}
/// <summary>
/// Adds the producer to a Document.
/// </summary>
/// <returns>true if successful, false otherwise</returns>
public bool AddProducer()
{
return(Add(new Meta(Element.PRODUCER, Version.GetInstance().GetVersion)));
}
