Asp.net uses itextsharp to generate PDF documents

1 Recently, when I was working on a system, I needed to generate a PDF document. I searched for the open-source itextsharp file to generate a PDF document. I learned how to use Asp.net to generate PDF documents.CodeAs follows:
2 Private   Void Creatpdf ()
3 {
4 Document Doc =   New Document ();
5 Memorystream MS =   New Memorystream ();
6 Try
7 {
8 Pdfwriter writer = Using writer. getinstance (Doc, MS );
9 Writer. closestream =   False ;
10 Doc. open ();
11 Doc. Add ( New Paragraph ( " Hello word! " ));
12 }
13 Catch (Exception ERR)
14 {
15Throw NewException (ERR. Message );
16}
17 Finally
18 {
19Doc. Close ();
20Viewpdf (MS );
21}
22 }
23
24 Private   Void Viewpdf (Stream FS)
25 {
26 Response. Clear ();
27 // Chinese name
28 // Response. appendheader ("content-disposition", "attachment; filename =" +
29 // Httputility. urlencode (filename, system. Text. encoding. utf8) + "; charset = gb2312 ");
30 Response. addheader ( " Content-Disposition " , " Attachment?filename=out= " );
31 Response. addheader ( " Content-Length " , FS. length. tostring ());
32 Response. contenttype =   " Application/PDF " ;
33 Long Filelength = FS. length;
34 Int Size =   10240 ; // 10 K one-multipart download, 10 K is 1
35 Byte [] Readdata =   New   Byte [Size];
36 If (Size > Filelength)
37 Size = Convert. toint32 (filelength );
38 Long FPOs =   0 ;
39 Bool Isend =   False ;
40 While ( ! Isend)
41 {
42 If (FPOs + Size) > = Filelength)
43 {< br> 44 size = convert. toint32 (filelength - FPOs );
45 isend = true ;
46 }
47 Readdata =   New   Byte [Size];
48 FS. Position = FPOs;
49 FS. Read (readdata, 0 , Size );
50 Response. binarywrite (readdata );
51 Response. outputstream. Flush ();
52 FPOs + = Size;
53 }
54 FS. Close ();
55 Response. outputstream. Close ();
56 Response. End (); // Very important. Without this sentence, the HTML code of the page will be saved to the file.
57 Response. Close ();
58 }
59
60 The above Code simply saves a PDF document. The specific settings of the PDF document format need to be further studied. Handle exceptions in actual use.
61

 

 

 

 

 

This blog details the use of itextsharp: http://www.cnblogs.com/hardrock
Use itextsharp to enter the Chinese (China, Japan, and South Korea) PDF form (complete solution)