C Generates PDF File Stream

This article example for everyone to share C # generated PDF file stream specific code, for your reference, the specific content is as follows

1. Set the font

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. Generate an PDF file stream to return an byte array

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();
      // Title 
      Paragraph title = new Paragraph(new Chunk(" Title ", titleFont));
      title.Alignment = Element.ALIGN_CENTER;
      document.Add(title);
      // Picture 
      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);
      // Document source 
      Paragraph p2 = new Paragraph(new Chunk(" Source ", paragraphFont));
      p2.IndentationLeft = indentationLeft;
      document.Add(p2);
      InitData(list);// Initialize business data 
      CreateSteps(list, document, list.FirstOrDefault(it => it.PID == 0));// Add business data 
      //// Add a seal 
      //iTextSharp.text.Image whyz = iTextSharp.text.Image.GetInstance(whyzPath);
      //whyz.ScalePercent(50);
      //whyz.PaddingTop = 100;
      //whyz.Alignment = Element.ALIGN_RIGHT;
      //document.Add(whyz);
      // Add date 
      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, " Watermark content ", docWidth, docHeight);// To add a watermark, see Additional 1 A blog 
      newfile.Position = 0;// Reset the stream pointer position 
      byte[] bytes = new byte[newfile.Length];
      newfile.Read(bytes, 0, bytes.Length);
      return bytes;
    }