C# PDF插入图片并自动保存至相应的文件夹

对于创建PDF时，向PEF中插入图片，坐标比较不好控制，建议先在PDF里画表格，然后将图片放至对应的表格即可。

方法如下：

     private void OutPutPDF()
                                {
                                    string imagePath = GR_Path; //文件路径
                                    string OutPath = @"D:\";
                                    string fileName = string.Empty;
                                    fileName = "Test";
                                    Document document = new Document(PageSize.A4, 10, 10, 40, 10); //左、右、上、下
                                    //不显示对话框的导出方式
                                    PdfWriter writer = PdfWriter.GetInstance(document, new FileStream(OutPath + "\\" + fileName + ".pdf", FileMode.Create));//保存至目的地
                                    document.Open();
                                    PdfPTable table = new PdfPTable(1);
                                    PdfPCell cell;
                                    //Insert Image                              
                                    cell = new PdfPCell(new Phrase());
                                    cell.Rowspan = 1;
                                    cell.FixedHeight = 150;
                                    cell.Border = 0;
                                    //PDF中插入图片
                                    iTextSharp.text.Image imgCIE = iTextSharp.text.Image.GetInstance(imagePath + "\\" + "CIE" + ".png");
                                    imgCIE.ScaleToFit(618f, 281f);
                                    // Chunk ckCIE = new Chunk(imgCIE, 0, 0);
                                    cell.AddElement(new Chunk(imgCIE, 0, 0));
                                    cell.HorizontalAlignment = Element.ALIGN_CENTER;
                                    cell.VerticalAlignment = Element.ALIGN_BOTTOM;
                                    table.AddCell(cell);
                                    document.Add(table);
                                    document.Close();
                                }