版本为5.1.2
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.IO; using System.Text; using iTextSharp; using iTextSharp.text; using iTextSharp.text.pdf; using iTextSharp.text.pdf.parser; public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { string path = Server.MapPath("~/") + "Pdfs\\Doc1.pdf"; writePDF(path, "毛主席万岁!!!"); string content = readPDF(path); Response.Write(content); } /// <summary> /// 读出pdf文件(返回有换行符) /// </summary> /// <param name="fn">读出的pdf文件的路径和名称</param> /// <returns></returns> private string readPDF(string fn) { PdfReader reader = new PdfReader(fn); StringBuilder strBuilder = new StringBuilder(); int num = reader.NumberOfPages; for (var i = 1; i <= num; i++) { string text = PdfTextExtractor.GetTextFromPage(reader,num); strBuilder.Append(text); } return strBuilder.ToString(); } /// <summary> /// 写入pdf文件 /// </summary> /// <param name="fn">路径</param> /// <param name="content">段落内容</param> private void writePDF(string fn, string content) { //必须先加入资源 //string path = Server.MapPath("~/"); //BaseFont.AddToResourceSearch(path + "DLL\\iTextAsian.dll"); //BaseFont.AddToResourceSearch(path + "DLL\\iTextAsianCmaps.dll"); //"UniGB-UCS2-H" "UniGB-UCS2-V"是简体中文,分别表示横向字 和 纵向字 //"STSong-Light"是字体名称 //BaseFont bf = BaseFont.CreateFont("STSong-Light", "UniGB-UCS2-H", BaseFont.EMBEDDED); ////可以使用 TTF 字体 //BaseFont bf0 = BaseFont.CreateFont("C:/WINDOWS/Fonts/SIMYOU.TTF", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED); BaseFont bf = BaseFont.CreateFont("c://windows//fonts//simsun.ttc,1", BaseFont.IDENTITY_H, BaseFont.EMBEDDED); iTextSharp.text.Font font = new iTextSharp.text.Font(bf); var doc1 = new Document(); //默认为A4大小 //var doc2 = new Document(PageSize.A5); //var doc3 = new Document(new Rectangle(100f, 300f)); 宽100像素,高300像素 PdfWriter.GetInstance(doc1, new FileStream(fn, FileMode.Create)); doc1.Open(); doc1.Add(new Paragraph(content, font)); doc1.Close(); } }
iTextSharp 读出,写入
时间: 2024-09-20 02:03:30