如何使用pdfbox将/ UF命令添加到pdf？(How do I add /UF command to a pdf using pdfbox?)

 我已经实现了使用pdfbox库将相对链接添加到pdf的功能。下面是我用来添加链接的代码： 
 
 PDAnnotationLink txtLink = new PDAnnotationLink();
 PDActionRemoteGoTo remoteGoto = new PDActionRemoteGoTo();
 PDComplexFileSpecification fileDesc = new PDComplexFileSpecification();
 fileDesc.setFile(System.IO.Path.GetFileName(path));
 remoteGoto.setOpenInNewWindow(true);
 remoteGoto.setFile(fileDesc);
 txtLink.setAction(remoteGoto);
 txtLink.setRectangle(rect);
 page.getAnnotations().add(txtLink);
 
 这里是在pdf中输入的命令： 
 
14 0 obj
<<
/Type /Filespec
/F (A-201-NORTH & SOUTHSITE ELEVATIONS.pdf)
>>
endobj
 
 链接在adobe，ios查看器中工作。 但在PSPDF中不起作用。 另外，我有文件链接PSPDF的工作。 但是该文件中的命令与上面略有不同。以下是PSPDF中的链接命令： 
 
113 0 obj
<<
/Type /Filespec
/F (A8.1 - INTERIOR ELEVATION.pdf)
/UF (A8.1 - INTERIOR ELEVATION.pdf)
/Desc()
>>
 
 那么，我该如何使用pdfbox来创建这个命令。 

I have implemented functionality to add a relative link into a pdf using the pdfbox library.Below is the code that I am using for adding the link:
 
 PDAnnotationLink txtLink = new PDAnnotationLink();
 PDActionRemoteGoTo remoteGoto = new PDActionRemoteGoTo();
 PDComplexFileSpecification fileDesc = new PDComplexFileSpecification();
 fileDesc.setFile(System.IO.Path.GetFileName(path));
 remoteGoto.setOpenInNewWindow(true);
 remoteGoto.setFile(fileDesc);
 txtLink.setAction(remoteGoto);
 txtLink.setRectangle(rect);
 page.getAnnotations().add(txtLink);
 
Here is the command entered in the pdf:
 
14 0 obj
<<
/Type /Filespec
/F (A-201-NORTH & SOUTHSITE ELEVATIONS.pdf)
>>
endobj
 
The links work in adobe, ios viewer. But does not work in PSPDF. Also, I have file whose link work in PSPDF. But the commands in that file differ slightly from the above.Here is the link command that works in the PSPDF:
 
113 0 obj
<<
/Type /Filespec
/F (A8.1 - INTERIOR ELEVATION.pdf)
/UF (A8.1 - INTERIOR ELEVATION.pdf)
/Desc()
>>
 
So, how do I create this command using pdfbox.

原文：https://stackoverflow.com/questions/46968111