/// <summary>
/// Verifies that any Additional Info layers are consistent.
/// </summary>
private void VerifyInfoLayers()
{
var infoLayersCount = AdditionalInfo.Count(x => x is InfoLayers);
if (infoLayersCount > 1)
{
throw new PsdInvalidException(
"Cannot have more than one InfoLayers in a PSD file.");
}
if ((infoLayersCount > 0) && (Layers.Count == 0))
{
throw new PsdInvalidException(
"InfoLayers cannot exist when there are 0 layers.");
}
}
