iTextSharp生成pdf

最新推荐文章于 2025-04-24 09:52:49 发布

转载最新推荐文章于 2025-04-24 09:52:49 发布 · 377 阅读

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本文介绍了一种使用iTextSharp库在C#中生成带有字段的可填写PDF的方法。通过加载模板文件并利用PdfStamper类填充字段，实现了自动化创建PDF的功能。

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using System;
using System.Web;
using System.Web.Caching;
using System.Web.UI.HtmlControls;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Collections.Generic;
using System.Text;
using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;

namespace PDF_OUT_CL
{
public class PDF_Print_Out
{
// * FLAGをセットする
private const string F_FLAG = "fflag";

// * FONTをセットする
private const string T_FONT = "textfont";

// * PdfContentByte for this stamper
private PdfContentByte cb = null;

private string[] FIED_NM_OHOR ={ "SCC_Mail_NO" };

// * TEMPLATE_NM　社員名簿PDFのTEMPLATE名
private String TEMPLATE_NM = null;

public PDF_Print_Out(string template_nm)
{
this.TEMPLATE_NM=template_nm;
}
/// <summary>
/// Create PDF File
/// </summary>
/// <param name="values"></param>
public void Creat_PDF_File(HttpResponse Response, string[] values)
{
this.createPDF_OHOR(Response,FIED_NM_OHOR, values);
}

private void createPDF_OHOR(HttpResponse Response, string[] FIELD_NM, string[] values)
{
Cache cache = new Cache();
PdfReader reader = null;
PdfStamper stamp = null;
Stream file = null;
string sname = DateTime.Now.ToString("yyMMddhhmmss");
Random Rand = new Random(4);
sname = sname+Convert.ToString(Rand.Next())+".pdf";
try
{
reader = new PdfReader(this.TEMPLATE_NM);

file = new FileStream(@"D:/WINSOR/PDF_OUT/PDF/PDF_OUT"+sname, FileMode.OpenOrCreate);

stamp = new PdfStamper(reader, file);
BaseFont baseFont = this.getFont();
AcroFields form = stamp.AcroFields;
//cb = stamp.GetOverContent(1);

for (int i = 0; i < FIELD_NM.Length; i++)
{
form.SetFieldProperty(FIELD_NM[i], F_FLAG, PdfFormField.FF_READ_ONLY, null);
form.SetFieldProperty(FIELD_NM[i], T_FONT, baseFont, null);
form.SetField(FIELD_NM[i], values[i]);
}

stamp.FormFlattening = true;
stamp.Close();
long FileSize;
FileStream PDFfile = new FileStream(@"D:/WINSOR/PDF_OUT/PDF/PDF_OUT" + sname,FileMode.Open);

FileSize = PDFfile.Length;
byte[] buffer = new byte[(int)FileSize];
PDFfile.Read(buffer, 0, (int)FileSize);
PDFfile.Close();
File.Delete(@"D:/WINSOR/PDF_OUT/PDF/PDF_OUT" + sname);
Response.AddHeader("Content-Disposition", "attachment");
Response.ContentType = "application/pdf";
Response.BinaryWrite(buffer);
Response.Flush();
Response.Close();

}
catch(Exception ex)
{
throw ex;
}

}

private BaseFont getFont()
{
BaseFont font = BaseFont.CreateFont(@"c:/WINDOWS/Fonts/SIMHEI.TTF", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);

return font; // Return the base font to create the pdf document
}
}

}