c# iText 生成PDF 有文字，图片，表格，文字样式，对齐方式，页眉页脚，等等等，

#region 下载说明书PDF

protected void lbtnDownPDF_Click(object sender, EventArgs e)

{

int pid = ConvertHelper.GetInteger(Request["PID"]);

pds = p.GetModel(pid);

#region 第一种方法

DataTable datatable = new DataTable(dt.ToString());

try

{

string Url1 = "pdfBook\\" + GetNewName() + ".pdf";

//创建一个文档对象，并设置他的初始化大小

Rectangle pSize = new Rectangle(144, 90);

//文档的背景色

pSize.BackgroundColor = Color.WHITE;

//常用页面大小 PageSize.A4;

Document document = new Document(PageSize.A4);

PdfWriter.GetInstance(document, new FileStream(Server.MapPath(Url1), FileMode.Create));

BaseFont bfChinese = BaseFont.CreateFont("C:\\WINDOWS\\Fonts\\simsun.ttc,1", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);

Font fontChinese = new Font(bfChinese, 12, Font.NORMAL, new Color(0, 0, 0));

Font headerChinese = new Font(bfChinese, 15, Font.BOLD, new Color(0, 0, 0));

Font beizhufontChinese = new Font(bfChinese, 10, Font.ITALIC, new Color(255, 0, 0));

#region 页眉和页脚

/**

* HeaderFooter的第2个参数为非false时代表打印页码

* 页眉页脚中也可以加入图片，并非只能是文字

*/

HeaderFooter header = new HeaderFooter(new Phrase("陕西龙凤祥珠宝版权所有", beizhufontChinese), false);

//设置是否有边框等

// header.setBorder(Rectangle.NO_BORDER);

header.Border = Rectangle.BOTTOM_BORDER;

header.Alignment = 1;

header.BorderColor = Color.RED;

document.Header = header;

HeaderFooter footer = new HeaderFooter(new Phrase("-", beizhufontChinese), new Phrase("-", beizhufontChinese));

/**

* 0是靠左

* 1是居中

* 2是居右

*/

footer.Alignment = 1;

footer.BorderColor = Color.RED;

footer.Border = Rectangle.BOTTOM_BORDER;

document.Footer = footer;

/**

* 页眉页脚的设置一定要在open前设置好

*/

#endregion

document.Open();

//按设置的字体输出文本

string contents = replaceHtmlCode(pds.ProductName);

string details = replaceHtmlCode(pds.ProductDetail);

Paragraph heading = new Paragraph(contents, headerChinese);

heading.SpacingAfter = 18f;

heading.Alignment = 1;

//heading.IndentationLeft = 220f;

document.Add(heading);

MultiColumnText columns = new MultiColumnText();

columns.AddSimpleColumn(36f, 336f);

columns.AddSimpleColumn(360f, document.PageSize.Width - 36f);

Paragraph detail = new Paragraph(details, fontChinese);

detail.SpacingAfter = 9f;

detail.Alignment = Element.ALIGN_JUSTIFIED;

detail.IndentationLeft = 12f;//全文都缩进了

//document.Add(detail);

//输出图片到PDF文件

string Url = "../uploadpic\\" + pds.Picture;//<img src="../uploadpic/20150213/wm201521317692.jpg" />

iTextSharp.text.Image jpeg01 = iTextSharp.text.Image.GetInstance(Server.MapPath(Url));

jpeg01.IndentationLeft = 150f;

//document.Add(jpeg01);

columns.AddElement(detail);

columns.AddElement(jpeg01);

columns.AddElement(detail);

columns.AddElement(detail);

columns.AddElement(detail);

//columns.AddElement(end);

document.Add(columns);

//Paragraph end = new Paragraph("陕西龙凤祥珠宝版权所有", beizhufontChinese);

//end.IndentationLeft = 200f;

//document.Add(end);

document.Close();

#region 自动下载

// 保存文件的物理路径

string FullPath = HttpContext.Current.Server.MapPath(Url1);

// 初始化FileInfo类的实例，作为文件路径的包装

FileInfo FI = new FileInfo(FullPath);

// 判断文件是否存在

if (FI.Exists)

{

// 将文件保存到本机

Response.Clear();

Response.AddHeader("Content-Disposition", "attachment;filename=" + Server.UrlEncode(FI.Name));

Response.AddHeader("Content-Length", FI.Length.ToString());

Response.ContentType = "application/octet-stream";

Response.Filter.Close();

Response.WriteFile(FI.FullName);

Response.End();

}

#endregion

}

catch (DocumentException de)

{

Response.Write(de.ToString());

}

#endregion

}

#endregion