blocks|key|1661809|text|PDF是一个二进制对象。您需要将字节直接写入文件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1661810|转换成文本可能会破坏它。是否以%25%25PDF-开头并以%25%25EOF结尾|offset|length|style|CODE|1661811|entityMap^0|0|F|6|P|5|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]|$D|N|E|O|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|P|8|@]|9|@]|A|$]]]|I|$]]

A PDF is a binary object. You need to write the bytes directly to a file.

Turning into text will probably break it. Does it start with <code>%%PDF-</code> and end with <code>%%EOF</code>?

blocks|key|2690675|text|你是怎么弄明白这条线的？如果它是一个原始的ASCII字符串，您将丢失PDF中嵌入的大量二进制数据。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2690676|如果你有一个unicode字符串，你可以直接使用OutputStream+(不是Writer，因为你实际上不想写字符数据)把它写到一个文件中。|2690677|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

How did you come across this string? If it is a raw ASCII string, you will be missing a large amount of binary data that is embedded within the PDF. 

If you have a unicode string, you may be able to write it to a file directly using an OutputStream (not a Writer as you don't actually want to write character data).

blocks|key|4293400|text|iText方法是正确的。你可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4293401|import+java.io.*;

import+com.lowagie.text.*;
import+com.lowagie.text.pdf.*;

public+class+TextFileToPDF+{

++/*
+++++ex.+java+TextFileToPDF++c:\temp\text.txt++c:\temp\text.pdf
++*/
++public+static+void+main+(String+[]+args){
++++BufferedReader+input+=+null;
++++Document+output+=+null;
++++System.out.println("Convert+text+file+to+pdf");
++++System.out.println("input++:+"+%2B+args[0]);
++++System.out.println("output+:+"+%2B+args[1]);
++++try+{
++++++//+text+file+to+convert+to+pdf+as+args[0]
++++++input+=+
++++++++new+BufferedReader+(new+FileReader(args[0]));
++++++//+letter+8.5x11
++++++//++++see+com.lowagie.text.PageSize+for+a+complete+list+of+page-size+constants.
++++++output+=+new+Document(PageSize.LETTER,+40,+40,+40,+40);
++++++//+pdf+file+as+args[1]
++++++PdfWriter.getInstance(output,+new+FileOutputStream+(args[1]));

++++++output.open();
++++++output.addAuthor("RealHowTo");
++++++output.addSubject(args[0]);
++++++output.addTitle(args[0]);

++++++String+line+=+"";
++++++while(null+!=+(line+=+input.readLine()))+{
++++++++System.out.println(line);
++++++++Paragraph+p+=+new+Paragraph(line);
++++++++p.setAlignment(Element.ALIGN_JUSTIFIED);
++++++++output.add(p);
++++++}
++++++System.out.println("Done.");
++++++output.close();
++++++input.close();
++++++System.exit(0);
++++}
++++catch+(Exception+e)+{
++++++e.printStackTrace();
++++++System.exit(1);
++++}
++}
}|code-block|syntax|javascript|4293402|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

The iText approach is the right one. You can do something like this :

<pre><code>import java.io.*;

import com.lowagie.text.*;
import com.lowagie.text.pdf.*;

public class TextFileToPDF {

 /*
 ex. java TextFileToPDF c:\temp\text.txt c:\temp\text.pdf
 */
 public static void main (String [] args){
 BufferedReader input = null;
 Document output = null;
 System.out.println("Convert text file to pdf");
 System.out.println("input : " + args[0]);
 System.out.println("output : " + args[1]);
 try {
 // text file to convert to pdf as args[0]
 input = 
 new BufferedReader (new FileReader(args[0]));
 // letter 8.5x11
 // see com.lowagie.text.PageSize for a complete list of page-size constants.
 output = new Document(PageSize.LETTER, 40, 40, 40, 40);
 // pdf file as args[1]
 PdfWriter.getInstance(output, new FileOutputStream (args[1]));

 output.open();
 output.addAuthor("RealHowTo");
 output.addSubject(args[0]);
 output.addTitle(args[0]);

 String line = "";
 while(null != (line = input.readLine())) {
 System.out.println(line);
 Paragraph p = new Paragraph(line);
 p.setAlignment(Element.ALIGN_JUSTIFIED);
 output.add(p);
 }
 System.out.println("Done.");
 output.close();
 input.close();
 System.exit(0);
 }
 catch (Exception e) {
 e.printStackTrace();
 System.exit(1);
 }
 }
}
</code></pre>

blocks|key|4293446|text|好的，经过大量的研究，我发现要保存字符串中的二进制数据，通常需要将其转换为Base64编码。根据一个完整的猜测，我解码了Base64中的字符串，并将字节放入pdf文件中，您瞧，我有一个可以打开的pdf！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4293447|谢谢你的回答，我希望这对将来的人有帮助！|4293448|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Okay, well after a lot of research I found out that to preserve the binary data in the string that typically you convert it to Base64 encoding. On a complete guess I decoded the string out of Base64 and dropped the bytes into the pdf file, and lo and behold I had a pdf that could be opened!

Thanks for the answers and I hope this helps someone in the future!

I have a huge string of text that is apparently raw data for a PDF file, and I need to make it back into a PDF.

Currently I'm reading the string into a StringBuffer but if I need to I can change that. From there I have tried just writing it out to a file and changing the extension (I really hoped that worked, but I kinda knew it wouldn't), I've tried taking it to a String then getting a byte[] out of it and writing that to the file or using a DataOutputStream to put the bytes into the file. None of these has seemed to work.

I've also tried using the iText plugin, I tried just writing it to a pdf through that and I also tried reading the text as a pdf and then copying it page by page to a new pdf. Neither of these have returned very good results. 

It's Friday afternoon, I'm tapped, any suggestions will be a huge help!

Convert text into PDF

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我有一个很大的文本字符串，显然是PDF文件的原始数据，我需要将其重新转换为PDF。目前，我正在将字符串读取到StringBuffer中，但如果需要，我可以更改它。从那时起，我试着将它写出到一个文件中并更改扩展名(我真的希望这能行得通，但我知道这行不通)，我试着把它变成一个字符串，然后从中提取一个byte[]，并将它写到...

问将文本转换为PDF
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