blocks|key|585953|text|问题是pdf是由创建的，并被保存为“”。解决方案是将文件保存为“表单”。可能pdftk无法处理该livecycle。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|585954|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

The problem was that the pdf was created by Adobe LiveCycle Designer and was save as "Adobe Dynamic XML From". The solution is saving the file as "Adobe Static PDF Form". Possibly pdftk cannot deal with that livecycle files.

blocks|key|641481|text|我认为接受的答案可能是我的解决方案，但原来我正在处理的PDF文档实际上没有设置表单字段。如果文档看起来像表单，但是表单字段没有灰化，那么将不会检测到任何字段。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|641482|解决这个问题的唯一方法是在Acrobat中打开文档，并通过其表单工具添加字段。然后pdftk工作得很好。|641483|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|$]]

I thought the accepted answer might have been my solution, but it turned out the PDF document I was working with actually didn't have form fields set up. If the document looks like a form, but the form fields are not greyed out, then no fields will be detected.

The only way I could solve this was to open the document in Acrobat Pro and add the fields via its form tool. Then pdftk worked fine.

blocks|key|641642|text|如果您在Windows环境中面临OP问题，请按照下面的说明操作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|641643|1-打开GUI+PDFtk程序。(如果您愿意，也可以使用cli+)|641644|​|641645|📷|atomic|offset|length|641646|点击“添加PDF.”按钮并搜索已填充的PDF文件。|641647|641648|641649|641650|3-滚动到GUI+PDFtk窗口的底部，然后单击"Create+.“而不添加或更改任何设置。|641651|641652|641653|641654|4-将具有新名称的新填充准备的PDF文件保存到您选择的目录中。|641655|641656|641657|641658|5-最后，使用cmd发出dump_data_fields命令的Windows版本，如下所示(注意如何使用"output“而不是">")|641659|641660|641661|641662|打开文本文件"fields.txt"，你会看到字段名。示例如下所示。|641663|641664|641665|641666|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/13e6dd3263a2d9cc4e65f2e21ed8f9b3.png|imageAlt|1|https://developer.qcloudimg.com/http-save/yehe-900000/9e64fd56723829f73cbc116df9f22726.png|2|https://developer.qcloudimg.com/http-save/yehe-900000/1e2cb93cd1097e423a14594f7de86b84.png|3|https://developer.qcloudimg.com/http-save/yehe-900000/0e331b542069357440c5c1ba1f7c9b9a.png|4|https://developer.qcloudimg.com/http-save/yehe-900000/26319cadbb4adf58f58b0050034caf2a.png|5|https://developer.qcloudimg.com/http-save/yehe-900000/67074de494476c8101bff042e2faac3e.png^0|0|0|0|0|1|0|0|0|0|0|1|1|0|0|0|0|0|1|2|0|0|0|0|0|1|3|0|0|0|0|0|1|4|0|0|0|0|0|1|5|0|0^^$0|@$1|2|3|4|5|6|7|1S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1T|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|1U|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|1V|8|@]|9|@$I|1W|J|1X|1|1Y]]|A|$]]|$1|K|3|L|5|6|7|1Z|8|@]|9|@]|A|$]]|$1|M|3|E|5|6|7|20|8|@]|9|@]|A|$]]|$1|N|3|G|5|H|7|21|8|@]|9|@$I|22|J|23|1|24]]|A|$]]|$1|O|3|E|5|6|7|25|8|@]|9|@]|A|$]]|$1|P|3|Q|5|6|7|26|8|@]|9|@]|A|$]]|$1|R|3|E|5|6|7|27|8|@]|9|@]|A|$]]|$1|S|3|G|5|H|7|28|8|@]|9|@$I|29|J|2A|1|2B]]|A|$]]|$1|T|3|E|5|6|7|2C|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|2D|8|@]|9|@]|A|$]]|$1|W|3|E|5|6|7|2E|8|@]|9|@]|A|$]]|$1|X|3|G|5|H|7|2F|8|@]|9|@$I|2G|J|2H|1|2I]]|A|$]]|$1|Y|3|E|5|6|7|2J|8|@]|9|@]|A|$]]|$1|Z|3|10|5|6|7|2K|8|@]|9|@]|A|$]]|$1|11|3|E|5|6|7|2L|8|@]|9|@]|A|$]]|$1|12|3|G|5|H|7|2M|8|@]|9|@$I|2N|J|2O|1|2P]]|A|$]]|$1|13|3|E|5|6|7|2Q|8|@]|9|@]|A|$]]|$1|14|3|15|5|6|7|2R|8|@]|9|@]|A|$]]|$1|16|3|E|5|6|7|2S|8|@]|9|@]|A|$]]|$1|17|3|G|5|H|7|2T|8|@]|9|@$I|2U|J|2V|1|2W]]|A|$]]|$1|18|3|E|5|6|7|2X|8|@]|9|@]|A|$]]|$1|19|3|-4|5|6|7|2Y|8|@]|9|@]|A|$]]]|1A|$1B|$5|1C|1D|1E|A|$1F|1G|1H|-4]]|1I|$5|1C|1D|1E|A|$1F|1J|1H|-4]]|1K|$5|1C|1D|1E|A|$1F|1L|1H|-4]]|1M|$5|1C|1D|1E|A|$1F|1N|1H|-4]]|1O|$5|1C|1D|1E|A|$1F|1P|1H|-4]]|1Q|$5|1C|1D|1E|A|$1F|1R|1H|-4]]]]

If you are facing the problem of the OP within the Windows environment, follow the below instructions.

1- Open the GUI PDFtk program. (You may also use the cli if you wish)

<a href="https://i.stack.imgur.com/3ArzP.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3ArzP.png" alt="extracting pdf fields using pdftk on Windows"></a> 

2- Click on the "Add PDF..." button and search for your fill-ready PDF file. 

<a href="https://i.stack.imgur.com/P8Tj7.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/P8Tj7.png" alt="extracting pdf fields using pdftk on Windows"></a>

3- Scroll down to the bottom of the GUI PDFtk window and click on "Create PDF..." without adding or changing any settings.

<a href="https://i.stack.imgur.com/3dDss.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3dDss.png" alt="extracting pdf fields using pdftk on Windows"></a>

4- Save the new fill-ready PDF file with a new name to a directory of your choice

<a href="https://i.stack.imgur.com/R9ByV.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/R9ByV.png" alt="extracting pdf fields using pdftk on Windows"></a>

5- Finally, issue the Windows version of the dump_data_fields command using cmd, like so.(notice how "output" is used instead of ">")

<a href="https://i.stack.imgur.com/M9fWO.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/M9fWO.png" alt="extracting pdf fields using pdftk on Windows"></a>

6- Open the text file "fields.txt", and you will see the field names. Example shown below. 

<a href="https://i.stack.imgur.com/MeLur.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/MeLur.png" alt="extracting pdf fields using pdftk on Windows"></a>

blocks|key|1274833|text|我不知道这是否有帮助，但我编写了一些C#代码来计算文档中的数据字段。请参阅下列功能。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1274834|在这里，我们将文件路径传递给一个文件，它计算文档中的字段总数。
public+int+countDataFields(string+inputFile)+{+int+fieldCount+=+0；string+fieldCount=+""；true(+newProcess+=新进程()){+inputFile+%2B“dump_data_fields"；newProcess.StartInfo+=新ProcessStartInfo("pdftk+"，参数)；newProcess.StartInfo.RedirectStandardInput+=+true；newProcess.StartInfo.RedirectStandardOutput+=+true；newProcess.StartInfo.RedirectStandardError+=+true；newProcess.StartInfo.UseShellExecute+=+false；newProcess.StartInfo.CreateNoWindow+=+false；newProcess.Start()；while+(!newProcess.StandardOutput.EndOfStream)+{+var+line+=+newProcess.StandardOutput.ReadLine()；fieldCount+=+fieldCount+%2B+1；}Console.WriteLine(“字段计数：”%2B+fieldCount)；newProcess.WaitForExit()；}返回fieldCount}；|ordered-list-item|1274835|如果您希望通过标准输入将文件作为流传递
{+int+countDataFieldsWhenFilePassedAsBinaryStream(string+=+0；//初始化二进制读取器，并使用传入文件的文件流打开二进制读取器。BinaryReader+binaryReader+=新BinaryReader(File.Open(file1，FileMode.Open，FileAccess.Read))；//创建一个1024的缓冲区数组。byte[]缓冲器=新byte1024；使用(Process+newProcess+=新进程()){+newProcess.StartInfo+=新ProcessStartInfo("pdftk")；newProcess.StartInfo.Arguments+=+@“-+dump_data_fields"；newProcess.StartInfo.UseShellExecute+=+false；newProcess.StartInfo.RedirectStandardInput+=+true；newProcess.StartInfo.RedirectStandardOutput+=+true；newProcess.Start()；int+bytesRead+=+0；//我们正在以1024字节/字节的块读取二进制文件，只要字节读取大于0，则(bytesRead=binaryReader.Read，0,1024)>+0)+{+//我们将标准输入字节写入缓冲区。newProcess.StandardInput.BaseStream.Write(buffer，0，bytesRead)；}+//关闭binaryReader+binaryReader.Close()；//关闭标准输入流newProcess.StandardInput.Close()；//在这里我们将循环通过标准输出流直到eof。我们正在计算时间(newProcess.StandardOutput.EndOfStream+==+false)+{+//读取行；newProcess.StandardOutput.ReadLine()；//增加计数器fieldCount%2B%2B;；}//控制台写入字段计数。Console.WriteLine(fieldCount)；newProcess.WaitForExit()；}//函数convertPDFToStandardInput的使用结束|1274836|希望这会有所帮助:)|1274837|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$]]|$1|E|3|F|5|D|7|M|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|N|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|O|8|@]|9|@]|A|$]]]|J|$]]

I don't know if this helps but I wrote some C# code to count the data fields in a document. Please see the following functions.

<ol>
<li>Here we pass the file path to a file and it counts the total number of fields in the document. 

<pre><code>public int countDataFields(string inputFile)
{
 int fieldCount = 0;
 string arguments = "";

 using (Process newProcess = new Process())
 {
 arguments = inputFile + " dump_data_fields";
 newProcess.StartInfo = new ProcessStartInfo("pdftk ", arguments);
 newProcess.StartInfo.RedirectStandardInput = true; 
 newProcess.StartInfo.RedirectStandardOutput = true;
 newProcess.StartInfo.RedirectStandardError = true;
 newProcess.StartInfo.UseShellExecute = false;
 newProcess.StartInfo.CreateNoWindow = false;
 newProcess.Start();

 while (!newProcess.StandardOutput.EndOfStream)
 {
 var line = newProcess.StandardOutput.ReadLine();
 fieldCount = fieldCount + 1;
 }

 Console.WriteLine("Field Counts: " + fieldCount);
 newProcess.WaitForExit();
 }

 return fieldCount;
}
</code></pre></li>
<li>In case you want to pass a file as a stream through the standard input

<pre><code>public void countDataFieldsWhenFilePassedAsBinaryStream(string file1)
{
 int fieldCount = 0;
 // initialize the binary reader and open the binary reader with the file stream of the incoming file.
 BinaryReader binaryReader = new BinaryReader(File.Open(file1, FileMode.Open, FileAccess.Read));

 //create a buffer array of 1024.
 byte[] buffer = new byte[1024];

 using (Process newProcess = new Process())
 {
 newProcess.StartInfo = new ProcessStartInfo("pdftk");
 newProcess.StartInfo.Arguments = @" - dump_data_fields";
 newProcess.StartInfo.UseShellExecute = false;
 newProcess.StartInfo.RedirectStandardInput = true;
 newProcess.StartInfo.RedirectStandardOutput = true;
 newProcess.Start();

 int bytesRead = 0;

 // we are reading the binary files in chunks of 1024 bytes
 // we loop through as long as the byte read is greater than 0
 while ((bytesRead = binaryReader.Read(buffer, 0, 1024)) &gt; 0)
 {
 // we write the standard input bytes into the buffer.
 newProcess.StandardInput.BaseStream.Write(buffer, 0, bytesRead);
 }

 //closing the binaryReader
 binaryReader.Close();

 //closing the standard input stream
 newProcess.StandardInput.Close();

 // here we are going to loop through the standard output stream till the eof. we are counting the

 while (newProcess.StandardOutput.EndOfStream == false)
 {
 //read the line;
 newProcess.StandardOutput.ReadLine();
 //increment the counter
 fieldCount++;;
 }

 // console writeline the field count.
 Console.WriteLine(fieldCount);

 newProcess.WaitForExit();
 }// end of using
}// end of function convertPDFToStandardInput
</code></pre></li>
</ol>

Hope this helps :)

I am using the tool <code>pdftk</code>, I have got a editable PDF and I saw in the documentation the arguments <code>dump_data_fields</code> should show me the fields of the form.

I use this command (windows): <code>pdftk my-pdf-form.pdf dump_data_fields</code>

I am using the <code>pdftk</code> server edition.

Documentation: <a href="https://www.pdflabs.com/docs/pdftk-man-page/" rel="noreferrer">https://www.pdflabs.com/docs/pdftk-man-page/</a>

The point is that the PDF is editable, it has got fields to write with Adobe PDF Viewer.

Executing "pdftk my-pdf-form.pdf dump_data_fields" shows nothing

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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我正在使用pdftk工具，我有一个可编辑的PDF，我在文档中看到了参数dump_data_fields应该向我显示表单的字段。我使用以下命令(windows)：pdftk my-pdf-form.pdf dump_data_fields我正在使用pdftk服务器版本。文档：重点是PDF是可编辑的，它有可以用编写的字段。

问执行"pdftk my-pdf-form.pdf dump_data_fields“没有显示任何内容
EN

回答 4

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问执行"pdftk my-pdf-form.pdf dump_data_fields“没有显示任何内容EN

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问执行"pdftk my-pdf-form.pdf dump_data_fields“没有显示任何内容
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