using System;

using System.IO;

using System.Text;

using System.Collections;

namespace PDFGenerator

 {

//生成pdf的類

public class PDFGenerator

{

 //初始化，定義pdf檔案大小

static float pageWidth = 594.0f;

static float pageDepth = 828.0f;

static float pageMargin = 30.0f;

static float fontSize = 10.0f;

static float leadSize = 10.0f;

//在磁碟指定位置建立一個PDF檔案

static StreamWriter pPDF=new StreamWriter("E:\\新建資料夾\\工作目錄\\myPDF.pdf");

//在記憶體中建立檔案緩衝區

static MemoryStream mPDF= new MemoryStream();

//將文字檔案資料轉換成pdf格式並寫入檔案緩衝區的函式

static void ConvertToByteAndAddtoStream(string strMsg)

{

Byte[] buffer=null;

buffer=ASCIIEncoding.ASCII.GetBytes(strMsg);

mPDF.Write(buffer,0,buffer.Length);

buffer=null; }

 //將資料長度格式資訊格式化為外部參照格式

static string xRefFormatting(long xValue)

{

string strMsg =xValue.ToString();

int iLen=strMsg.Length;

if (iLen<10) { StringBuilder s=new StringBuilder();

                 //StringBuilder是修改字串的類

 int i=10-iLen;

s.Append('0',i);

strMsg=s.ToString() + strMsg;

}

return strMsg; }

//入口主函式

static void Main(string[] args)

{

//為pdf檔案的外部格式建立一個佇列列表

ArrayList xRefs=new ArrayList();

float yPos =0f;

long streamStart=0;

long streamEnd=0;

long streamLen =0;

string strPDFMessage=null;

//PDF檔案的頭資訊 strPDFMessage="%PDF-1.1\n";

ConvertToByteAndAddtoStream(strPDFMessage);

 //將頭資訊轉換成位元組並加入檔案緩衝區

 //開始新的一頁

xRefs.Add(mPDF.Length); strPDFMessage="1 0 obj\n";

                  //ID 1 For Containt

ConvertToByteAndAddtoStream(strPDFMessage);

 //write the Text

strPDFMessage="<< /Length 2 0 R >>\n";

      //ID 2 For Length of the Stream

ConvertToByteAndAddtoStream(strPDFMessage);

strPDFMessage="stream\n";

ConvertToByteAndAddtoStream(strPDFMessage);

//得到緩衝區的開始

streamStart=mPDF.Length;

strPDFMessage="BT\n/F0 " + fontSize +" Tf\n";

ConvertToByteAndAddtoStream(strPDFMessage);

yPos = pageDepth - pageMargin;

strPDFMessage=pageMargin + " " + yPos +" Td\n" ;

ConvertToByteAndAddtoStream(strPDFMessage);

strPDFMessage= leadSize+" TL\n" ;

ConvertToByteAndAddtoStream(strPDFMessage);

//輸入文字資訊到檔案緩衝區

strPDFMessage= "(It is a new test!)Tj\n" ;

ConvertToByteAndAddtoStream(strPDFMessage);

strPDFMessage= "ET\n";

ConvertToByteAndAddtoStream(strPDFMessage);

//得到緩衝區的結尾

streamEnd=mPDF.Length;

 //得到緩衝區的長度

streamLen=streamEnd-streamStart;

 strPDFMessage= "endstream\nendobj\n";

ConvertToByteAndAddtoStream(strPDFMessage);

//將第二個目標加入外部參照格式

xRefs.Add(mPDF.Length);

strPDFMessage="2 0 obj\n"+ streamLen + "\nendobj\n";

ConvertToByteAndAddtoStream(strPDFMessage);

ConvertToByteAndAddtoStream(strPDFMessage);

//將頁資訊加入到外部參照模式

xRefs.Add(mPDF.Length);

strPDFMessage="3 0 obj\n<</Type/Page/Parent 4 0 R/Contents 1 0 R>>\nendobj\n";

ConvertToByteAndAddtoStream(strPDFMessage);

//建立這個頁

xRefs.Add(mPDF.Length);

strPDFMessage="4 0 obj\n<</Type /Pages /Count 1\n";

ConvertToByteAndAddtoStream(strPDFMessage);

strPDFMessage="/Kids[\n3 0 R\n]\n";

ConvertToByteAndAddtoStream(strPDFMessage);

strPDFMessage="/Resources<</ProcSet[/PDF/Text]/Font<</F0 5 0 R>> >>\n";

ConvertToByteAndAddtoStream(strPDFMessage);

strPDFMessage="/MediaBox [ 0 0 "+ pageWidth + " " + pageDepth + "]\n>>\nendobj\n";

ConvertToByteAndAddtoStream(strPDFMessage);

//將字型資訊加入到外部參照模式

xRefs.Add(mPDF.Length);

strPDFMessage="5 0 obj\n<</Type/Font/Subtype/Type1/BaseFont/Courier/Encoding/WinAnsiEncoding>>\nendobj\n";

ConvertToByteAndAddtoStream(strPDFMessage);

//將目錄資訊加入到外部參照模式

xRefs.Add(mPDF.Length);

strPDFMessage="6 0 obj\n<</Type/Catalog/Pages 4 0 R>>\nendobj\n";

ConvertToByteAndAddtoStream(strPDFMessage);

//外部參照模式入口

streamStart=mPDF.Length;

strPDFMessage="xref\n0 7\n0000000000 65535 f \n";

for(int i=0;i<xRefs.Count;i++)

 {

strPDFMessage+=xRefFormatting((long) xRefs[i])+" 00000 n \n";

 }

ConvertToByteAndAddtoStream(strPDFMessage);

//PDF位置資訊

strPDFMessage="trailer\n<<\n/Size "+ (xRefs.Count+1)+"\n/Root 6 0 R\n>>\n";

ConvertToByteAndAddtoStream(strPDFMessage);

//外部參照模式本地入口

strPDFMessage="startxref\n" + streamStart+"\n%%EOF\n";

ConvertToByteAndAddtoStream(strPDFMessage);

//將檔案緩衝區的內容寫入到檔案

mPDF.WriteTo(pPDF.BaseStream);

//關閉緩衝區

mPDF.Close();

pPDF.Close();

}

}

}

這是直接生成1個PDF檔案的小程式希望對你有幫助