pdf文件的创建(第三方插件)

代码如下：

/// <summary>
        /// 生成PDF
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void btnSave_Click(object sender, EventArgs e)
        {
            DataTable dt = bll.GetSupply();
            string fontPath = @"c:\windows\fonts\SIMKAI.ttf";//楷体字
            //创建PDF文档对象
            Document doc = new Document();
            //实例化生成的文档
            PdfWriter writer = PdfWriter.GetInstance(doc, new FileStream(this.txtPath.Text.Trim(), FileMode.Create));
            BaseFont baseFont = BaseFont.CreateFont(fontPath, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
            Font font = new Font(baseFont, 10);
            doc.AddAuthor(this.txtAuthor.Text.Trim());//作者
            doc.AddKeywords(this.txtKeyWords.Text.Trim());//关键字
            doc.AddSubject(this.txtZhuti.Text.Trim());//主题
            doc.AddTitle(this.txtTitle.Text.Trim());//标题
            //页眉  页眉和页脚的HeaderFooter 类 只存在于 Itextsharp 5.0 version以下，高版本现在已经Remove HeaderFooter类
            HeaderFooter header = new HeaderFooter(new Phrase(this.txtHeader.Text.Trim()), true);
            header.Border = Rectangle.NO_BORDER;
            doc.Header = header;
           
            //页脚
            HeaderFooter footer = new HeaderFooter(new Phrase(this.txtFooter.Text.Trim()), true);
            doc.Footer = footer;

            doc.Open();
            //添加图片
            iTextSharp.text.Image jpg = iTextSharp.text.Image.GetInstance(@"C:\Documents and Settings\Administrator\My Documents\My Pictures\129810262468791250.png");
            doc.Add(jpg);
            doc.Add(new Phrase(this.txtContent.Text.Trim(), font));
            //创建Table
            PdfPTable table = new PdfPTable(dt.Columns.Count);
            //设置默认表格样式
            table.DefaultCell.BorderWidth = 0.5f;
            table.DefaultCell.BorderColor = Color.BLUE;
            table.DefaultCell.HorizontalAlignment = Element.ALIGN_CENTER;
            table.DefaultCell.VerticalAlignment = Element.ALIGN_MIDDLE;
            for (int i = 0; i < dt.Columns.Count; i++)
            {
                table.AddCell(new Phrase(dt.Columns[i].ColumnName, font));
            }
            table.DefaultCell.BackgroundColor = Color.GRAY;
            table.DefaultCell.HorizontalAlignment = Element.ALIGN_LEFT;
            table.DefaultCell.VerticalAlignment = Element.ALIGN_MIDDLE;
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                for (int j = 0; j < dt.Columns.Count; j++)
                {
                    table.AddCell(new Phrase(dt.Rows[i][j].ToString(), font));
                }
            }
            doc.Add(table);
            doc.Close();
            writer.Close();
        }

        /// <summary>
        /// 在页面中显示PDF
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void btnShow_Click(object sender, EventArgs e)
        {
            Response.Clear();
            Response.ContentType = "Application/pdf";
            Response.WriteFile(this.txtPath.Text.Trim());
            Response.End();
        }

字体文件一般保存在Windows/fonts目录中，扩展名为TTF、TTC，TTC扩展名的字体是一个集合。在Windows系统中集中标准字体的文件名称：

SIMSUN.TTC 宋体和新宋体

SIMKAI.TTF 楷体

SIMHEI.TTF 黑体

SIMFANG.TTF  仿宋体

STZHONGS.TTF 中宋体

字体的应用例子

  Document document = new Document();
                PdfWriter.GetInstance(document, new FileStream(@"c:\hello.pdf", FileMode.Create));
                BaseFont baseFont = BaseFont.CreateFont(@"C:\WINDOWS\Fonts\SIMYOU.TTF", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
                Font font = new Font(baseFont, 12);
                document.Open();
                document.Add(new Paragraph("测试一下数据", font));
                document.Close();

字体集合的应用

 Document document = new Document();
                PdfWriter.GetInstance(document, new FileStream(@"c:\hello.pdf", FileMode.Create));
                BaseFont baseFont1 = BaseFont.CreateFont(@"C:\WINDOWS\Fonts\SIMSUN.TTC,1", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
                Font font1 = new Font(baseFont1, 12);

                BaseFont baseFont2 = BaseFont.CreateFont(@"C:\WINDOWS\Fonts\SIMSUN.TTC,0", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
                Font font2 = new Font(baseFont2, 12);
                document.Open();
                document.Add(new Paragraph("测试一下数据", font1));
                document.Add(new Paragraph("测试一下数据", font2));
                document.Close();

如果以下代码，输入中文字体不会显示或者乱码

 Document document = new Document();
                PdfWriter.GetInstance(document, new FileStream(@"c:\hello.pdf", FileMode.Create));
                BaseFont baseFont1 = BaseFont.CreateFont(@"C:\WINDOWS\Fonts\ROCKB.TTF", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
                Font font1 = new Font(baseFont1, 12);
                document.Open();
                document.Add(new Paragraph("测试一下", font1));
                document.Close();

原因是指定的字体是支持英文不支持中文的，此时我们只需要修改我们的指定的字体就可以。

 创建table

   Document document = new Document();
                PdfWriter.GetInstance(document, new FileStream(@"c:\hello.pdf", FileMode.Create));
                document.Open();
                iTextSharp.text.Table table = new iTextSharp.text.Table(3);
                table.Cellpadding = 0;
                table.Cellspacing = 0;
                table.BorderWidth = 0.5f;
                table.BorderColor = Color.BLUE;
                Cell cell = new Cell(" table header");

                cell.Colspan = 3;
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                cell.Header = true;
                table.AddCell(cell);


                cell = new Cell("cell 1");
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                cell.Rowspan = 2;
                table.AddCell(cell);

                cell = new Cell("cell 2"); 
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                table.AddCell(cell);

                cell = new Cell("cell 3");
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                table.AddCell(cell);

                cell = new Cell("cell 4"); 
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                table.AddCell(cell);

                cell = new Cell("cell 5"); 
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                table.AddCell(cell);

                cell = new Cell("cell 6"); 
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                table.AddCell(cell);

                cell = new Cell("cell 7"); 
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                cell.Rowspan = 2;
                cell.Colspan = 2;
                table.AddCell(cell);

                cell = new Cell("cell 8"); 
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                table.AddCell(cell);
                document.Add(table);
                document.Close();

 PDF加密

用到PdfWriter实例的setEncryption（bool strength,string userPassword ,string ownerPassWord,int permission）函数

      Document doc = new Document();
            PdfWriter we = PdfWriter.GetInstance(doc, new FileStream(@"c:\d.pdf", FileMode.Create));
            we.SetEncryption(PdfWriter.STRENGTH128BITS, "test", "admin", PdfWriter.ALLOW_COPY | PdfWriter.ALLOW_PRINTING|PdfWriter.ALLOW_MODIFY_CONTENTS);
            doc.Open();
            doc.Add(new Paragraph("Hello World!"));
            doc.Close();

Permission参数为下列常量

PdfWriter.AllowPrinting

PdfWriter.AllowCopy

......