文件转化

1：JPG转PDF

string source = @"D:\2019\07\02\A9070200078\Report\A9070200078.jpg";
string destinaton = @"D:\2019\07\02\A9070200078\Report\A9070200078.pdf";

PdfDocument doc = new PdfDocument();
doc.Pages.Add(new PdfPage());
XGraphics xgr = XGraphics.FromPdfPage(doc.Pages[0]);
XImage img = XImage.FromFile(source);

xgr.DrawImage(img, 0, 0);
doc.Save(destinaton);
doc.Close();