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标题: C#生成PDF文件流 [打印本页]

作者: Adam丶鱼 时间: 2020-3-1 17:38
标题: C#生成PDF文件流
1、设置字体
      static BaseFont FontBase = BaseFont.CreateFont("C:\\WINDOWS\\FONTS\\STSONG.TTF", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
      static iTextSharp.text.Font bodyFont = new iTextSharp.text.Font(FontBase, 12);
      static iTextSharp.text.Font titleFont = new iTextSharp.text.Font(FontBase, 18);
      static iTextSharp.text.Font paragraphFont = new iTextSharp.text.Font(FontBase, 15);
      static iTextSharp.text.Font linkFont = new iTextSharp.text.Font(FontBase, 12, Font.UNDERLINE, BaseColor.BLUE);

2、生成PDF文件流返回byte数组
   public byte[] DocCreate(System.Drawing.Image image, List<TreeNodes> list)
      {
         MemoryStream file = new MemoryStream();

         string fileName = string.Empty;
         Rectangle page = PageSize.A4;
         float y = page.Height;
         Document document = new Document(page, 15, 15, 30, 30);
         float docWidth = page.Width - 15 * 2;
         float docHeight = page.Height - document.BottomMargin - document.TopMargin;
         PdfWriter writer = PdfWriter.GetInstance(document, file);
         writer.CloseStream = false;
         writer.Open();
         PdfContentByte cb = writer.DirectContent;
         document.Open();
         //标题
         Paragraph title = new Paragraph(new Chunk("标题", titleFont));
         title.Alignment = Element.ALIGN_CENTER;
         document.Add(title);
         //图片
         iTextSharp.text.Image img = iTextSharp.text.Image.GetInstance(image, ImageFormat.Png);
         float widthSzie = (page.Width - 30) / img.Width;
         if (widthSzie < 1)
         {
            img.ScalePercent(widthSzie * 100);
         }
         document.Add(img);
         //文献出处
         Paragraph p2 = new Paragraph(new Chunk("出处", paragraphFont));
         p2.IndentationLeft = indentationLeft;
         document.Add(p2);
         InitData(list);//初始化业务数据
         CreateSteps(list, document, list.FirstOrDefault(it => it.PID == 0));//添加业务数据
         ////添加印章
         //iTextSharp.text.Image whyz = iTextSharp.text.Image.GetInstance(whyzPath);
         //whyz.ScalePercent(50);
         //whyz.PaddingTop = 100;
         //whyz.Alignment = Element.ALIGN_RIGHT;
         //document.Add(whyz);
         //添加日期
         Paragraph createtime = new Paragraph(new Chunk(DateTime.Now.ToLongDateString().ToString(), bodyFont));
         createtime.Alignment = Element.ALIGN_RIGHT;
         //createtime.SpacingBefore = -80;
         createtime.PaddingTop = 200;

         document.Add(createtime);

         document.Close();
         file.Position = 0;
         MemoryStream newfile = SetWaterMark(file, "水印内容", docWidth, docHeight);//添加水印，见另外一篇博客
         newfile.Position = 0;//重置流指针位置
         byte[] bytes = new byte[newfile.Length];
         newfile.Read(bytes, 0, bytes.Length);
         return bytes;
      }

作者: 张兴康 时间: 2020-3-1 18:20

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