效果图：
参考：http://www.cnblogs.com/CareySon/archive/2011/11/09/2243496.html
http://www.cnblogs.com/julyluo/p/3839788.html
itextsharp版本：4.1.6.0
代码：
////// Compare页面生成pdf功能。 /// /// 国家 /// pn /// 语言 ///响应对象 public string ComparePdf(string country, string[] pns, string language) { var result = ""; //生成pdf Document document = new Document(); //这样写：是生成一个文件到某目录中 //var directory = HttpContext.Current.Server.MapPath("~/pdf"); //string host = HttpContext.Current.Request.Url.Host; //int port = HttpContext.Current.Request.Url.Port; //if (!Directory.Exists(directory)) //{ // Directory.CreateDirectory(directory); //} //var fileName = ""; //foreach (var item in pns) //{ // fileName += "_" + item + "_"; //} //fileName = "Compare" + fileName + DateTime.Now.ToString("yyyyMMddHHmmss") + ".pdf"; //var pdfPath = directory + "\\" + fileName; //var fileStream = new FileStream(pdfPath, FileMode.Create); //PdfWriter pw = PdfWriter.GetInstance(document, fileStream); //这样写：是生成文件到内存中去 var memoryStream = new MemoryStream(); PdfWriter pw = PdfWriter.GetInstance(document, memoryStream);//生成到内存中 //数据 var list = Compare(country, pns, language); document.Open();//打开文件 //写入数据 //注册字体 string fontpath = HttpContext.Current.Server.MapPath("~/App_Data"); BaseFont customfont = BaseFont.CreateFont(fontpath + "\\Lato-Regular.ttf", BaseFont.CP1252, BaseFont.EMBEDDED); var baseFont = new Font(customfont, 14 * 0.667f, Font.NORMAL, new Color(68, 68, 68)); var leftFont = new Font(customfont, 14 * 0.667f, Font.BOLD, new Color(68, 68, 68)); #region 头部 PdfPTable tableLogo = new PdfPTable(3); tableLogo.DefaultCell.Border = Rectangle.NO_BORDER; tableLogo.DefaultCell.MinimumHeight = 40f; float[] headWidths = new float[] { 60f, 60f, 150f }; tableLogo.SetWidths(headWidths); //logo var logo = iTextSharp.text.Image.GetInstance("http://d1fyvoqprbjuee.cloudfront.net/smartfindimages/logo.png"); logo.ScaleToFit(130 * 0.667f, 43 * 0.667f); var logoCell = new PdfPCell(); logoCell.PaddingLeft = -1f; logoCell.MinimumHeight = 45f; logoCell.HorizontalAlignment = Element.ALIGN_LEFT; logoCell.Border = 0; logoCell.AddElement(logo); tableLogo.AddCell(logoCell); var headFont = new Font(customfont, 26 * 0.667f, Font.BOLD, new Color(68, 68, 68)); var sCell = new PdfPCell(new Paragraph("SmartFind", headFont)); sCell.Border = 0; sCell.PaddingLeft = 3f; sCell.PaddingBottom = 17f; sCell.MinimumHeight = 45f; sCell.HorizontalAlignment = Element.ALIGN_LEFT; sCell.VerticalAlignment = Element.ALIGN_BOTTOM; tableLogo.AddCell(sCell); var aCell = new PdfPCell(); aCell.Border = 0; aCell.MinimumHeight = 45f; aCell.PaddingBottom = 17f; aCell.HorizontalAlignment = Element.ALIGN_LEFT; aCell.VerticalAlignment = Element.ALIGN_BOTTOM; var accFont = new Font(customfont, 18 * 0.667f, Font.NORMAL, new Color(170, 170, 170)); var acc = new Paragraph("| Accessories", accFont); aCell.AddElement(acc); tableLogo.AddCell(aCell); document.Add(tableLogo); #endregion document.Add(new Paragraph("")); #region 中间的表格 PdfPTable table = new PdfPTable(list.Count + 1);//n列的表格 table.DefaultCell.Border = 0; table.DefaultCell.HorizontalAlignment = Element.ALIGN_CENTER; table.DefaultCell.VerticalAlignment = Element.ALIGN_MIDDLE; //根据图片数量确定列数及列宽 if (pns.Count() == 1) { float[] widths = new float[] { 2f, 3f }; table.SetWidths(widths); } else if (pns.Count() == 2) { float[] widths = new float[] { 2f, 3f, 3f }; table.SetWidths(widths); } else if (pns.Count() == 3) { float[] widths = new float[] { 2f, 3f, 3f, 3f }; table.SetWidths(widths); } else if (pns.Count() == 4) { float[] widths = new float[] { 2f, 3f, 3f, 3f, 3f }; table.SetWidths(widths); } //左单元格 var leftCell = new PdfPCell(new Paragraph("Images", leftFont)); leftCell.MinimumHeight = 40f; leftCell.BackgroundColor = new Color(242, 242, 242); leftCell.HorizontalAlignment = Element.ALIGN_CENTER; leftCell.VerticalAlignment = Element.ALIGN_MIDDLE; table.AddCell(leftCell); //右单元格 var rightCell = new PdfPCell(); rightCell.HorizontalAlignment = Element.ALIGN_CENTER; rightCell.VerticalAlignment = Element.ALIGN_MIDDLE; rightCell.MinimumHeight = 40f; foreach (var item in list) { var imageCell = new PdfPCell(); imageCell.Padding = 1f; //根据图片数量确定左边距，确保图片在中间显示。这个地方写的不好，暂时这样 if (list.Count == 2) { imageCell.PaddingLeft = 30f; } if (list.Count == 1) { imageCell.PaddingLeft = 80f; } if (list.Count == 3) { imageCell.PaddingLeft = 10f; } //确保网络图片存在 if (!string.IsNullOrEmpty(item.Url) && Helper.IsExists(item.Url + "-218.png")) { var image = iTextSharp.text.Image.GetInstance(item.Url + "-218.png"); if (list.Count == 4) { image.ScaleToFit(80f, 80f); } else { image.ScaleToFit(100f, 100f); } imageCell.AddElement(image); } table.AddCell(imageCell); } //Product Title leftCell.Phrase = new Paragraph("Product Title", leftFont); var titleFont = new Font(customfont, 14 * 0.667f, Font.NORMAL, new Color(255, 105, 0)); table.AddCell(leftCell); foreach (var item in list) { rightCell.Phrase = new Paragraph(item.Title, titleFont); table.AddCell(rightCell); } //List Price leftCell.Phrase = new Paragraph("List Price", leftFont); table.AddCell(leftCell); foreach (var item in list) { rightCell.Phrase = new Paragraph(item.Currency + item.Price, baseFont); table.AddCell(rightCell); } //Part Number leftCell.Phrase = new Paragraph("Part Number", leftFont); table.AddCell(leftCell); foreach (var item in list) { rightCell.Phrase = new Paragraph(item.PN, baseFont); table.AddCell(rightCell); } //facet var first = list.FirstOrDefault(); foreach (var item in first.Facets) { leftCell.Phrase = new Paragraph(item.Key, leftFont); table.AddCell(leftCell); rightCell.Phrase = new Paragraph(item.Value, baseFont); table.AddCell(rightCell); //其余的 list.Remove(first); var other = list; foreach (var one in other) { rightCell.Phrase = new Paragraph(one.Facets.FirstOrDefault(o => o.Key == item.Key).Value, baseFont); table.AddCell(rightCell); } } document.Add(table); #endregion //页脚 PDFFooter footer = new PDFFooter(); footer.OnEndPage(pw, document); document.Close(); var bytes = memoryStream.ToArray(); result = Convert.ToBase64String(bytes); return result; }////// 页脚类 /// public class PDFFooter : PdfPageEventHelper { // write on top of document public override void OnOpenDocument(PdfWriter writer, Document document) { base.OnOpenDocument(writer, document); PdfPTable tabFot = new PdfPTable(new float[] { 1F }); tabFot.SpacingAfter = 10F; PdfPCell cell; tabFot.TotalWidth = 300F; cell = new PdfPCell(new Phrase("Header")); tabFot.AddCell(cell); tabFot.WriteSelectedRows(0, -1, 150, document.Top, writer.DirectContent); } // write on start of each page public override void OnStartPage(PdfWriter writer, Document document) { base.OnStartPage(writer, document); } // write on end of each page public override void OnEndPage(PdfWriter writer, Document document) { base.OnEndPage(writer, document); PdfPTable tabFot = new PdfPTable(new float[] { 1F }); tabFot.TotalWidth = 700f; tabFot.DefaultCell.Border = 0; // var footFont = FontFactory.GetFont("Lato", 12 * 0.667f, new Color(60, 60, 60)); string fontpath = HttpContext.Current.Server.MapPath("~/App_Data"); BaseFont customfont = BaseFont.CreateFont(fontpath + "\\Lato-Regular.ttf", BaseFont.CP1252, BaseFont.EMBEDDED); var footFont = new Font(customfont, 12 * 0.667f, Font.NORMAL, new Color(170, 170, 170)); PdfPCell cell; cell = new PdfPCell(new Phrase("@ 2016 . All Rights Reserved", footFont)); cell.VerticalAlignment = Element.ALIGN_CENTER; cell.Border = 0; cell.PaddingLeft = 100f; tabFot.AddCell(cell); tabFot.WriteSelectedRows(0, -1, 150, document.Bottom, writer.DirectContent); } //write on close of document public override void OnCloseDocument(PdfWriter writer, Document document) { base.OnCloseDocument(writer, document); } }
////// 判断网络文件是否存在 /// /// ///public static bool IsExists(string url) { try { using (new WebClient().OpenRead(url)) { } return true; } catch (WebException) { return false; } }
其他注意点：
1、当字体不支持中文、日文、繁体中文
public string[] ChineseFont = new string[] { "Traditional Chinese [zh-tw]", "Japanese [ja]" }; BaseFont customfont = BaseFont.CreateFont(fontpath + "\\Lato-Regular.ttf", BaseFont.CP1252, BaseFont.EMBEDDED); if (ChineseFont.Contains(data.Language)) { customfont = BaseFont.CreateFont(fontpath + "\\msyh.ttf", BaseFont.IDENTITY_H, BaseFont.EMBEDDED); } 要写BaseFont.IDENTITY_H
2、表格的边框
设置 table.DefaultCell.Border = 0;是不能约束单元格的边框的，必须每个单元格单独设置边框pnCell.Border=0或设置其他宽度及四面是否显示。
3、表格位置
一个表格默认是在页面中居中对齐，要设置 左对齐： pnTable.HorizontalAlignment = Element.ALIGN_LEFT;
4、表格中嵌套表格
嵌套的表格不会占满此行，设置了此表格左对齐，右边留白很多。要完全设置表格的宽度，并且锁定才行。
pnTable.TotalWidth = 404 * 0.667f;
pnTable.LockedWidth = true;5、链接。
链接要用块来实现。
var linkCell = new PdfPCell(); linkCell.BorderWidthTop = 0; linkCell.Padding = 5f; linkCell.PaddingLeft = 10f; linkCell.PaddingBottom = 20f; var chunk = new Chunk("More Information", link14); chunk.SetAnchor("http://accsmartfind.lenovo.com/products/" + model.PN); linkCell.AddElement(chunk); table.AddCell(linkCell); 6、样式。
样式不行表格来凑，如果样式还不出来，再加一个表格。
代码： ，里面的对象数据要自己添加些调试。vs2013.