C# 利用iTextSharp画PDF

利用iTextSharp画PDF

友情提示：以下画PDF的代码是先创建PDF文件，然后往PDF里填充数据，如果不符合业务需求的，可以滑过

1、首先，添加iTextSharp包

2、添加PDF基类，供添加页脚、页眉、水印等

 /// <summary>/// Pdf处理基类/// </summary>public class PDFBase : PdfPageEventHelper{#region 属性private String _fontFilePathForHeaderFooter = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Fonts), "SIMHEI.TTF");/// <summary>/// 页眉/页脚所用的字体/// </summary>public String FontFilePathForHeaderFooter{get{return _fontFilePathForHeaderFooter;}set{_fontFilePathForHeaderFooter = value;}}private String _fontFilePathForBody = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Fonts), "SIMSUN.TTC,1");/// <summary>/// 正文内容所用的字体/// </summary>public String FontFilePathForBody{get { return _fontFilePathForBody; }set { _fontFilePathForBody = value; }}private PdfPTable _header;/// <summary>/// 页眉/// </summary>public PdfPTable Header{get { return _header; }private set { _header = value; }}private PdfPTable _footer;/// <summary>/// 页脚/// </summary>public PdfPTable Footer{get { return _footer; }private set { _footer = value; }}private BaseFont _baseFontForHeaderFooter;/// <summary>/// 页眉页脚所用的字体/// </summary>public BaseFont BaseFontForHeaderFooter{get { return _baseFontForHeaderFooter; }set { _baseFontForHeaderFooter = value; }}private BaseFont _baseFontForBody;/// <summary>/// 正文所用的字体/// </summary>public BaseFont BaseFontForBody{get { return _baseFontForBody; }set { _baseFontForBody = value; }}private Document _document;/// <summary>/// PDF的Document/// </summary>public Document Document{get { return _document; }private set { _document = value; }}#endregionpublic override void OnOpenDocument(PdfWriter writer, Document document){try{BaseFontForHeaderFooter = BaseFont.CreateFont(FontFilePathForHeaderFooter, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);BaseFontForBody = BaseFont.CreateFont(FontFilePathForBody, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);Document = document;}catch (DocumentException de){}catch (System.IO.IOException ioe){}}#region GenerateHeader/// <summary>/// 生成页眉/// </summary>/// <param name="writer"></param>/// <returns></returns>public virtual PdfPTable GenerateHeader(iTextSharp.text.pdf.PdfWriter writer){return null;}#endregion#region GenerateFooter/// <summary>/// 生成页脚/// </summary>/// <param name="writer"></param>/// <returns></returns>public virtual PdfPTable GenerateFooter(iTextSharp.text.pdf.PdfWriter writer){BaseFont baseFont = BaseFontForHeaderFooter;iTextSharp.text.Font font = new iTextSharp.text.Font(baseFont, 10, iTextSharp.text.Font.NORMAL);PdfPTable footer = new PdfPTable(3);AddFooterCell(footer, "甲方项目经理:", font);AddFooterCell(footer, "乙方代表：:", font);AddFooterCell(footer, "日期：", font);return footer;}private void AddFooterCell(PdfPTable foot, String text, iTextSharp.text.Font font){PdfPCell cell = new PdfPCell();cell.BorderWidthTop = 2;cell.BorderWidthRight = 0;cell.BorderWidthBottom = 0;cell.BorderWidthLeft = 0;cell.Phrase = new Phrase(text, font);cell.HorizontalAlignment = iTextSharp.text.Element.ALIGN_CENTER;foot.AddCell(cell);}#endregionpublic override void OnEndPage(iTextSharp.text.pdf.PdfWriter writer, iTextSharp.text.Document document){base.OnEndPage(writer, document);输出页眉//Header = GenerateHeader(writer);//Header.TotalWidth = document.PageSize.Width - 20f;/调用PdfTable的WriteSelectedRows方法。该方法以第一个参数作为开始行写入。/第二个参数-1表示没有结束行，并且包含所写的所有行。/第三个参数和第四个参数是开始写入的坐标x和y.//Header.WriteSelectedRows(0, -1, 10, document.PageSize.Height - 20, writer.DirectContent);//输出页脚Footer = GenerateFooter(writer);Footer.TotalWidth = document.PageSize.Width - 20f;Footer.WriteSelectedRows(0, -1, 10, document.PageSize.GetBottom(60), writer.DirectContent);}}

3、根据后台查出的数据画出PDF

 ///友情提示：在代码画PDF之前，最好自己先手动做一个范本（Excel），然后根据对应的行和列，代码画出[AllowAnonymous]public string BuildPdf(int srqrID){//获取数据var srqr = SRQR.getInfoByID(srqrID);var errMSG = "";try{if (srqr != null && srqr.ID > 0){//文件保存路径为当前程序的路径+日期+文件名称var urlHelper = new UrlHelper(this.Request.RequestContext);string hostPath = urlHelper.Content("~/");var dt = DateTime.Now;string fileHost = Server.MapPath("/") + "doc\\SRQRAttachments\\" + dt.ToString("yyyyMMdd") + "\\";if (!Directory.Exists(fileHost)){Directory.CreateDirectory(fileHost);}string fileName = string.Format("{0}-{1}.pdf", "收入确认单审批表", srqr.DJBH);//文件名称string filePath = fileHost + fileName;//文件路径string title = string.Format("收入确认单审批表");BaseFont bf = BaseFont.CreateFont(@"C:\Windows\Fonts\SIMHEI.TTF", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);BaseFont fs = BaseFont.CreateFont(@"C:\Windows\Fonts\SIMFANG.TTF", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);Font fonta = new Font(bf, 20, Font.BOLD, BaseColor.BLACK);Font fontb = new Font(bf, 12, Font.NORMAL, BaseColor.BLACK);Font fontc = new Font(fs, 20, Font.BOLD, BaseColor.BLACK);Rectangle pageSize = new Rectangle(1600, 1000);Document document = new Document(pageSize, 20, 20, 50, 80);PdfWriter writer = PdfWriter.GetInstance(document, new FileStream(filePath, FileMode.Create));writer.PageEvent = new PDFBase();document.Open();Paragraph p1 = new Paragraph(title, fontc);p1.Alignment = Element.ALIGN_CENTER;document.Add(p1);Paragraph p2 = new Paragraph(" ", fontc);p2.Alignment = Element.ALIGN_CENTER;document.Add(p2);document.AddTitle(title);//设置列的宽度，要画的PDF有多少列，就写多少个PdfPTable table = new PdfPTable(new float[] { 20, 10, 10, 10, 10, 10, 10, 20, 10, 10, 10, 20, 10, 10, 10, 10 });table.TotalWidth = 1200;table.LockedWidth = true;#region 第一行PdfPCell row1_Cell1 = new PdfPCell(new Paragraph("单据内码", fontc));row1_Cell1.HorizontalAlignment = Element.ALIGN_CENTER;row1_Cell1.VerticalAlignment = Element.ALIGN_MIDDLE;table.AddCell(row1_Cell1);PdfPCell row1_Cell1_value = new PdfPCell(new Paragraph(srqr.DJNM, fontb));row1_Cell1_value.HorizontalAlignment = Element.ALIGN_CENTER;row1_Cell1_value.VerticalAlignment = Element.ALIGN_MIDDLE;row1_Cell1_value.Colspan = 6;table.AddCell(row1_Cell1_value);PdfPCell row1_Cell2 = new PdfPCell(new Paragraph("单据编号", fontc));row1_Cell2.HorizontalAlignment = Element.ALIGN_CENTER;row1_Cell2.VerticalAlignment = Element.ALIGN_MIDDLE;table.AddCell(row1_Cell2);PdfPCell row1_Cell2_value = new PdfPCell(new Paragraph(srqr.DJBH, fontb));row1_Cell2_value.HorizontalAlignment = Element.ALIGN_CENTER;row1_Cell2_value.VerticalAlignment = Element.ALIGN_MIDDLE;row1_Cell2_value.Colspan = 3;table.AddCell(row1_Cell2_value);PdfPCell row1_Cell3 = new PdfPCell(new Paragraph("行政组织", fontc));row1_Cell3.HorizontalAlignment = Element.ALIGN_CENTER;row1_Cell3.VerticalAlignment = Element.ALIGN_MIDDLE;table.AddCell(row1_Cell3);PdfPCell row1_Cell3_value = new PdfPCell(new Paragraph(srqr.XZZZName, fontb));row1_Cell3_value.HorizontalAlignment = Element.ALIGN_CENTER;row1_Cell3_value.VerticalAlignment = Element.ALIGN_MIDDLE;row1_Cell3_value.Colspan = 4;table.AddCell(row1_Cell3_value);#endregion#region 第二行PdfPCell row2_Cell1 = new PdfPCell(new Paragraph("行政部门", fontc));row2_Cell1.HorizontalAlignment = Element.ALIGN_CENTER;row2_Cell1.VerticalAlignment = Element.ALIGN_MIDDLE;table.AddCell(row2_Cell1);PdfPCell row2_Cell1_value = new PdfPCell(new Paragraph(srqr.XZBMName, fontb));row2_Cell1_value.HorizontalAlignment = Element.ALIGN_CENTER;row2_Cell1_value.VerticalAlignment = Element.ALIGN_MIDDLE;row2_Cell1_value.Colspan = 6;table.AddCell(row2_Cell1_value);PdfPCell row2_Cell2 = new PdfPCell(new Paragraph("所属单位", fontc));row2_Cell2.HorizontalAlignment = Element.ALIGN_CENTER;row2_Cell2.VerticalAlignment = Element.ALIGN_MIDDLE;table.AddCell(row2_Cell2);PdfPCell row2_Cell2_value = new PdfPCell(new Paragraph(srqr.OwnerDeptName, fontb));row2_Cell2_value.HorizontalAlignment = Element.ALIGN_CENTER;row2_Cell2_value.VerticalAlignment = Element.ALIGN_MIDDLE;row2_Cell2_value.Colspan = 3;table.AddCell(row2_Cell2_value);PdfPCell row2_Cell3 = new PdfPCell(new Paragraph("所属部门", fontc));row2_Cell3.HorizontalAlignment = Element.ALIGN_CENTER;row2_Cell3.VerticalAlignment = Element.ALIGN_MIDDLE;table.AddCell(row2_Cell3);PdfPCell row2_Cell3_value = new PdfPCell(new Paragraph(srqr.OwnerProName, fontb));row2_Cell3_value.HorizontalAlignment = Element.ALIGN_CENTER;row2_Cell3_value.VerticalAlignment = Element.ALIGN_MIDDLE;row2_Cell3_value.Colspan = 4;table.AddCell(row2_Cell3_value);#endregion#region 第三行PdfPCell row3_Cell1 = new PdfPCell(new Paragraph("收入类型", fontc));row3_Cell1.HorizontalAlignment = Element.ALIGN_CENTER;row3_Cell1.VerticalAlignment = Element.ALIGN_MIDDLE;table.AddCell(row3_Cell1);PdfPCell row3_Cell1_value = new PdfPCell(new Paragraph(srqr.SRLXName, fontb));row3_Cell1_value.HorizontalAlignment = Element.ALIGN_CENTER;row3_Cell1_value.VerticalAlignment = Element.ALIGN_MIDDLE;row3_Cell1_value.Colspan = 6;table.AddCell(row3_Cell1_value);PdfPCell row3_Cell2 = new PdfPCell(new Paragraph("纳税人类型", fontc));row3_Cell2.HorizontalAlignment = Element.ALIGN_CENTER;row3_Cell2.VerticalAlignment = Element.ALIGN_MIDDLE;table.AddCell(row3_Cell2);PdfPCell row3_Cell2_value = new PdfPCell(new Paragraph(srqr.NSRLXName, fontb));row3_Cell2_value.HorizontalAlignment = Element.ALIGN_CENTER;row3_Cell2_value.VerticalAlignment = Element.ALIGN_MIDDLE;row3_Cell2_value.Colspan = 3;table.AddCell(row3_Cell2_value);PdfPCell row3_Cell3 = new PdfPCell(new Paragraph("是否主营", fontc));row3_Cell3.HorizontalAlignment = Element.ALIGN_CENTER;row3_Cell3.VerticalAlignment = Element.ALIGN_MIDDLE;table.AddCell(row3_Cell3);PdfPCell row3_Cell3_value = new PdfPCell(new Paragraph(srqr.SFZYName, fontb));row3_Cell3_value.HorizontalAlignment = Element.ALIGN_CENTER;row3_Cell3_value.VerticalAlignment = Element.ALIGN_MIDDLE;row3_Cell3_value.Colspan = 4;table.AddCell(row3_Cell3_value);#endregion#region 第四行PdfPCell row4_Cell1 = new PdfPCell(new Paragraph("制单人", fontc));row4_Cell1.HorizontalAlignment = Element.ALIGN_CENTER;row4_Cell1.VerticalAlignment = Element.ALIGN_MIDDLE;table.AddCell(row4_Cell1);PdfPCell row4_Cell1_value = new PdfPCell(new Paragraph(srqr.ZDRName, fontb));row4_Cell1_value.HorizontalAlignment = Element.ALIGN_CENTER;row4_Cell1_value.VerticalAlignment = Element.ALIGN_MIDDLE;row4_Cell1_value.Colspan = 6;table.AddCell(row4_Cell1_value);PdfPCell row4_Cell2 = new PdfPCell(new Paragraph("单据日期", fontc));row4_Cell2.HorizontalAlignment = Element.ALIGN_CENTER;row4_Cell2.VerticalAlignment = Element.ALIGN_MIDDLE;table.AddCell(row4_Cell2);PdfPCell row4_Cell2_value = new PdfPCell(new Paragraph((srqr.DJRQ != null ? srqr.DJRQ.Value.ToString("yyyy-MM-dd") : ""), fontb));row4_Cell2_value.HorizontalAlignment = Element.ALIGN_CENTER;row4_Cell2_value.VerticalAlignment = Element.ALIGN_MIDDLE;row4_Cell2_value.Colspan = 3;table.AddCell(row4_Cell2_value);PdfPCell row4_Cell3 = new PdfPCell(new Paragraph("单据状态", fontc));row4_Cell3.HorizontalAlignment = Element.ALIGN_CENTER;row4_Cell3.VerticalAlignment = Element.ALIGN_MIDDLE;table.AddCell(row4_Cell3);PdfPCell row4_Cell3_value = new PdfPCell(new Paragraph(srqr.DJZTName, fontb));row4_Cell3_value.HorizontalAlignment = Element.ALIGN_CENTER;row4_Cell3_value.VerticalAlignment = Element.ALIGN_MIDDLE;row4_Cell3_value.Colspan = 4;table.AddCell(row4_Cell3_value);#endregion#region 第五行PdfPCell row5_Cell1 = new PdfPCell(new Paragraph("本位币币种", fontc));row5_Cell1.HorizontalAlignment = Element.ALIGN_CENTER;row5_Cell1.VerticalAlignment = Element.ALIGN_MIDDLE;table.AddCell(row5_Cell1);PdfPCell row5_Cell1_value = new PdfPCell(new Paragraph(srqr.BWBName, fontb));row5_Cell1_value.HorizontalAlignment = Element.ALIGN_CENTER;row5_Cell1_value.VerticalAlignment = Element.ALIGN_MIDDLE;row5_Cell1_value.Colspan = 6;table.AddCell(row5_Cell1_value);PdfPCell row5_Cell2 = new PdfPCell(new Paragraph("计税方式", fontc));row5_Cell2.HorizontalAlignment = Element.ALIGN_CENTER;row5_Cell2.VerticalAlignment = Element.ALIGN_MIDDLE;table.AddCell(row5_Cell2);PdfPCell row5_Cell2_value = new PdfPCell(new Paragraph(srqr.JSFSName, fontb));row5_Cell2_value.HorizontalAlignment = Element.ALIGN_CENTER;row5_Cell2_value.VerticalAlignment = Element.ALIGN_MIDDLE;row5_Cell2_value.Colspan = 3;table.AddCell(row5_Cell2_value);PdfPCell row5_Cell3 = new PdfPCell(new Paragraph("收入确认金额", fontc));row5_Cell3.HorizontalAlignment = Element.ALIGN_CENTER;row5_Cell3.VerticalAlignment = Element.ALIGN_MIDDLE;table.AddCell(row5_Cell3);PdfPCell row5_Cell3_value = new PdfPCell(new Paragraph((srqr.SRQRJEBB ?? 0) == 0 ? "" : srqr.SRQRJEBB.Value.ToString("F2"), fontb));row5_Cell3_value.HorizontalAlignment = Element.ALIGN_CENTER;row5_Cell3_value.VerticalAlignment = Element.ALIGN_MIDDLE;row5_Cell3_value.Colspan = 4;table.AddCell(row5_Cell3_value);#endregion#region 第六行PdfPCell row6_Cell1 = new PdfPCell(new Paragraph("附件张数", fontc));row6_Cell1.HorizontalAlignment = Element.ALIGN_CENTER;row6_Cell1.VerticalAlignment = Element.ALIGN_MIDDLE;table.AddCell(row6_Cell1);PdfPCell row6_Cell1_value = new PdfPCell(new Paragraph((srqr.DJFJZS ?? 0).ToString(), fontb));row6_Cell1_value.HorizontalAlignment = Element.ALIGN_CENTER;row6_Cell1_value.VerticalAlignment = Element.ALIGN_MIDDLE;row6_Cell1_value.Colspan = 6;table.AddCell(row6_Cell1_value);#endregion#region 第七行PdfPCell row7_Cell1 = new PdfPCell(new Paragraph("单据摘要", fontc));row7_Cell1.HorizontalAlignment = Element.ALIGN_CENTER;row7_Cell1.VerticalAlignment = Element.ALIGN_MIDDLE;row7_Cell1.Rowspan = 2;table.AddCell(row7_Cell1);PdfPCell row7_Cell1_value = new PdfPCell(new Paragraph(srqr.DJZY, fontb));row7_Cell1_value.HorizontalAlignment = Element.ALIGN_LEFT;row7_Cell1_value.VerticalAlignment = Element.ALIGN_MIDDLE;row7_Cell1_value.Colspan = 15;row7_Cell1_value.Rowspan = 2;table.AddCell(row7_Cell1_value);#endregion#region 第八行PdfPCell row8_Cell1 = new PdfPCell(new Paragraph("报账事由", fontc));row8_Cell1.HorizontalAlignment = Element.ALIGN_CENTER;row8_Cell1.VerticalAlignment = Element.ALIGN_MIDDLE;row8_Cell1.Rowspan = 2;table.AddCell(row8_Cell1);PdfPCell row8_Cell1_value = new PdfPCell(new Paragraph(srqr.BZSY, fontb));row8_Cell1_value.HorizontalAlignment = Element.ALIGN_LEFT;row8_Cell1_value.VerticalAlignment = Element.ALIGN_MIDDLE;row8_Cell1_value.Colspan = 15;row8_Cell1_value.Rowspan = 2;table.AddCell(row8_Cell1_value);#endregionvar workerList = Wf_QueryDAL.Wf_GetEffectiveTrackList(srqr.WorkID ?? 0);if (workerList != null && workerList.Count > 0){#region 第九行PdfPCell row9_Cell1 = new PdfPCell(new Paragraph("审批记录", fontc));row9_Cell1.HorizontalAlignment = Element.ALIGN_CENTER;row9_Cell1.VerticalAlignment = Element.ALIGN_MIDDLE;row9_Cell1.Colspan = 16;table.AddCell(row9_Cell1);#endregionforeach (var item in workerList){#region 审批处理人相关PdfPCell spRow_Cell1 = new PdfPCell(new Paragraph(item.NDFromT, fontc));spRow_Cell1.HorizontalAlignment = Element.ALIGN_CENTER;spRow_Cell1.VerticalAlignment = Element.ALIGN_MIDDLE;table.AddCell(spRow_Cell1);PdfPCell spRow_Cell2 = new PdfPCell(new Paragraph(item.EmpFromT, fontb));spRow_Cell2.HorizontalAlignment = Element.ALIGN_CENTER;spRow_Cell2.VerticalAlignment = Element.ALIGN_MIDDLE;spRow_Cell2.Colspan = 6;table.AddCell(spRow_Cell2);PdfPCell spRow_Cell3 = new PdfPCell(new Paragraph(item.NodeData, fontb));spRow_Cell3.HorizontalAlignment = Element.ALIGN_CENTER;spRow_Cell3.VerticalAlignment = Element.ALIGN_MIDDLE;spRow_Cell3.Colspan = 4;table.AddCell(spRow_Cell3);PdfPCell spRow_Cell4 = new PdfPCell(new Paragraph(item.RDT.Substring(0, 10), fontb));spRow_Cell4.HorizontalAlignment = Element.ALIGN_CENTER;spRow_Cell4.VerticalAlignment = Element.ALIGN_MIDDLE;spRow_Cell4.Colspan = 5;table.AddCell(spRow_Cell4);#endregion}}document.Add(table);document.Close();writer.Close();//给PDF加水印// SetWatermark(filePath, "这是水印");//如果需要单独保存附件的一些信息，比如大小等，可利用FileInfo//FileInfo fileInfo = new FileInfo(filePath);}}catch (Exception ex){//对异常进行处理}return errMSG;}

4、加水印

 /// <summary>/// 给PDF加水印/// </summary>/// <param name="outputfilepath">PDF路径</param>/// <param name="waterMarkName">需要加的水印</param>/// <returns></returns>
private void SetWatermark(string outputfilepath, string waterMarkName){PdfReader pdfReader = null;PdfStamper pdfStamper = null;try{pdfReader = new PdfReader(outputfilepath);pdfStamper = new PdfStamper(pdfReader, new FileStream(outputfilepath, FileMode.Create));// 设置密码//pdfStamper.SetEncryption(false,userPassWord, ownerPassWord, permission);int total = pdfReader.NumberOfPages + 1;PdfContentByte content;BaseFont font = BaseFont.CreateFont(@"C:\WINDOWS\Fonts\SIMFANG.TTF", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);PdfGState gs = new PdfGState();gs.FillOpacity = 0.3f;//透明度int waterMarkNameLenth = waterMarkName.Length;char c;int rise = 0;int span = 15;int fontSize = 20;int height = 500;int width = 1800;string spanString = " ";//水平位移for (int i = 1; i < total; i++){rise = waterMarkNameLenth * span;//content = pdfStamper.GetOverContent(i);//在内容上方加水印content = pdfStamper.GetUnderContent(i);//在内容下方加水印content.SetGState(gs);content.BeginText();content.SetColorFill(BaseColor.DARK_GRAY);content.SetFontAndSize(font, fontSize);int heightNumbert = (int)Math.Ceiling((decimal)height / (decimal)rise);//垂直重复的次数，进一发int panleWith = (fontSize + span) * waterMarkNameLenth;int widthNumber = (int)Math.Ceiling((decimal)width / (decimal)panleWith);//水平重复次数// 设置水印文字字体倾斜 开始for (int w = 0; w < widthNumber; w++){for (int h = 1; h <= heightNumbert; h++){int yleng = rise * h;content.SetTextMatrix(w * panleWith, yleng);//x,y设置水印开始的绝对左边，以左下角为x，y轴的起点for (int k = 0; k < waterMarkNameLenth; k++){content.SetTextRise(yleng);//指定的y轴值处添加c = waterMarkName[k];content.ShowText(c + spanString);yleng -= span;}}}content.EndText();}}catch (Exception ex){throw ex;}finally{if (pdfStamper != null)pdfStamper.Close();if (pdfReader != null)pdfReader.Close();}}

5、效果

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