You'd have to write your own PDNameTreeNode.getNames(), that doesn't
convert the COSString to a String. Or better, your own utility method
for the name tree that creates a COSString-keyed map of all, not just
one level. Then analyse the COSString s that you get.
Tilman
Am 23.04.2019 um 10:38 schrieb Gueclue, Dahit:
Yes, that's what I found as well. Is there a way to to know this using Java
with PDFBox? If I do not know the encoding in advance, I cannot choose the
right encoding for the target directory without making assumptions. In my
experience the encodings had to match for the GoToE link to work.
Dahit
-----Ursprüngliche Nachricht-----
Von: Tilman Hausherr [mailto:[email protected]]
Gesendet: Freitag, 19. April 2019 07:32
An: [email protected]
Betreff: [bulk]: Re: AW: [bulk]: Re: Encoding of names dictionary and GoToE
target
I meant upload to a sharehoster (attachments are deleted, except when stuck in
moderation and your second one wasn't), but never mind. I removed the
JavaScript programmatically and found this:
/Names [<FEFF0045006D0070007400790050006100670065005000440046002E007000640066>
15 0 R]
So the UTF16 is in the original file.
Tilman
On 2019/04/18 09:24:26, "Gueclue, Dahit" <[email protected]> wrote:
Here are the files without javascript. Also I used this code to produce the
output:
import java.io.File;
import java.io.IOException;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import org.apache.pdfbox.cos.COSName;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDEmbeddedFilesNameTreeNode;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.common.PDRectangle;
import
org.apache.pdfbox.pdmodel.common.filespecification.PDComplexFileSpecification;
import org.apache.pdfbox.pdmodel.interactive.action.PDActionEmbeddedGoTo;
import org.apache.pdfbox.pdmodel.interactive.action.PDTargetDirectory;
import org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotation;
import org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotationLink;
import
org.apache.pdfbox.pdmodel.interactive.documentnavigation.destination.PDPageDestination;
import
org.apache.pdfbox.pdmodel.interactive.documentnavigation.destination.PDPageFitWidthDestination;
public class AddAnnotations
{
public static void main(String[] args) throws IOException
{
File file = new File("PDF with 1 PDF doc attachment.pdf");
PDDocument document = PDDocument.load(file);
PDPage page0 = document.getPage(0);
List<PDAnnotation> annotations = page0.getAnnotations();
try
{
// embedded files are stored in a named tree
PDEmbeddedFilesNameTreeNode efTree =
document.getDocumentCatalog().getNames().getEmbeddedFiles();
Map<String, PDComplexFileSpecification> names = efTree.getNames();
LinkedList<String> targets = new LinkedList<String>();
targets.addAll(names.keySet());
PDComplexFileSpecification fs = names.get("EmptyPagePDF.pdf");
PDDocument ef =
PDDocument.load(fs.getEmbeddedFile().createInputStream());
PDPage page = ef.getPage(0);
PDAnnotationLink annotation = new PDAnnotationLink();
PDActionEmbeddedGoTo action = new PDActionEmbeddedGoTo();
PDTargetDirectory target = new PDTargetDirectory();
PDPageDestination dest = new PDPageFitWidthDestination();
String name = new String(targets.get(0));
//byte[] utf16 = new
String("EmptyPagePDF.pdf").getBytes("UTF-16");
//name = new String(utf16); // works if this name is used
instead
target.setFilename(name);
target.setRelationship(COSName.C);
action.setTargetDirectory(target);
//action.setFile(fs);
dest.setPage(page);
action.setDestination(dest);
dest.setPageNumber(0);
annotation.setAction(action);
annotation.setRectangle(new PDRectangle(10, 10, 100, 100));
annotations.add(annotation);
// save the PDF
document.save("GoToE link output.pdf");
ef.close();
}
finally
{
document.close();
}
}
}
The name of the attachment did not contain any special symbols, but the
encoding for the name of the target directory and the name in the names
dictionary were different. The specification for GoToE actions does require a
destination, type, subtype and either a filespec or (at least for document
level attachments) a target directory. As a possible workaround I tried setting
the file specification of the attachment to the action, but that did not work
out either. If I know how GoToE works with file specifications, that would also
be enough.
Dahit
-----Ursprüngliche Nachricht-----
Von: Tilman Hausherr [mailto:[email protected]]
Gesendet: Donnerstag, 18. April 2019 06:15
An: [email protected]
Betreff: [bulk]: Re: Encoding of names dictionary and GoToE target
Please upload the files without javascript to reduce my fear of opening them.
Or better, post the code you use to create these files so that one can run that
code and create the files including the attachment. I looked at the PDF
specification and from what I see with PDFDebugger your files looks fine. I
assume the effect you mention happens with the attached files, despite that the
names were pure ascii ?
Tilman
On 2019/04/16 12:47:37, "Gueclue, Dahit" <[email protected]> wrote:
Hello,
I am currently working with PDFBox 2.0.14 and I am trying to create GoToE links
for document attachments. For this I created a test PDF file with one PDF
attachment in Adobe Acrobat XI.
The link is a PDAnnotationLink with an PDActionEmbeddedGoTo action. The
filename of the target directory recieves the name extracted from the
EmbeddedFiles name dictionary. After
adding the name, action and rectangle to the annotation, I save the result
document and open it with Adobe Acrobat Reader DC.
The problem I have is that the GoToE link is not opening the attachment. After
looking at the file in a text editor, it seems as if the file name in the names
dictionary uses a different encoding,
UTF-16-BE, than the file name in the target directory, ISO 8859-1. If I
manually convert file name to UTF-16 before adding it to the target directory
it works just fine. However, if I do not know
the encoding of the names in the names dictionary, I cannot generate the
correct name for the target directory.
Is there a way to determine which encoding the names dictionary uses or are
there other workarounds to this? I tried to set the file specification oft he
attachment to the action but that did not
work out for me.
Attached are the input and output files.
Regards,
Dahit G�cl�
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Dr. Karsten Theis
Aufsichtsrat: Dr. Heinz-Gerd Lehnhoff (Vorsitz)
________________________________________________________________________
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________________________________________________________________________
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HR: Amtsgericht Darmstadt, HRB 8383
Vorstand: Dr. Bernd Pätzold (Vorsitz), Reinhard Betz
Dr. Karsten Theis
Aufsichtsrat: Dr. Heinz-Gerd Lehnhoff (Vorsitz)
________________________________________________________________________
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