cefsharp保存文件为pdf

var success = await browserViewModel.WebBrowser.PrintToPdfAsync(dialog.FileName, new PdfPrintSettings
{
	MarginType = CefPdfPrintMarginType.Custom,
	MarginBottom = 10,
	MarginTop = 0, MarginLeft = 20, MarginRight = 10, PageWidth = 210000, PageHeight = 297000 });