private XMatterHelper CreatePaperSaverHelper(string xmatterName="PaperSaver")
{
if(xmatterName == "PaperSaver")
xmatterName = "Factory";
var factoryXMatter = BloomFileLocator.GetInstalledXMatterDirectory();
return new XMatterHelper(_dom, xmatterName, new FileLocator(new string[] { factoryXMatter }));
}