private void ConfigurePdf(UserSetting setting, Ghostscript.Converter gs)
{
gs.AddOption("CompatibilityLevel", Parameter.ToValue(setting.PDFVersion));
gs.AddOption("UseFlateCompression", true);
if (setting.PDFVersion == Parameter.PdfVersions.VerPDFA) ConfigurePdfA(setting, gs);
if (setting.PDFVersion == Parameter.PdfVersions.VerPDFX) ConfigurePdfX(setting, gs);
}