虚拟打印机输出的文件名是【C1 ドキュメント.tif】
_Document.Document.DocumentName = "dddddddddddd1"
_Document.Document.DefaultPageSettings.PrinterSettings.PrintFileName = "eeeeeeeeeee1"
_Document.Document.PrinterSettings.PrintFileName = "ffffffffffffffffff1"
printerSettings.DefaultPageSettings.PrinterSettings.PrintFileName = "gggggggg1"
_Document.Print(printerSettings, out)我这样设置，结果还是跑出来C1 ドキュメント
------解决思路----------------------
修改这行代码试试：
_Document.DocumentInfo.Title = "fffffsdfasf"
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