Am Thu, 26 Dec 2013 22:05:04 +0100 schrieb Jochen Stärk <[email protected]>:
> Hi, Hi Jochen, > In the second step (based on > http://pdfbox.apache.org/cookbook/workingwithattachments.html) I try > to embed a file but then the validator tells me > << > The key UF is required but missing. > The content of the stream must not be in an external file. > The key AFRelationship is required but missing. > File specification 'Test.txt' not associated with an object. > >> As you already find out, UF is the Unicode filename. It is the prefered way to store the filename in newer pdf versions. In the 32000_2008 spec I couldn't find the AFRelationship key at all but I found this site http://www.digitalpreservation.gov/formats/fdd/fdd000360.shtml with some PDF/A-3 notes that mention that key. I know there is a seperate specification available for the PDF/A-3. Also there is the new PDF spec 32000_2012 (this spec is refered in the note) > How do I get the content of the stream embedded (not "in an external > file") and do I need / how do I get the file specification 'Test.txt' > to be associated with the according object? Hard to say, the best way is to buy at least the PDF/A-3 spec and look at it. Otherway try to find some low level infos someway about embedding files. > > Is there a way to specify the UF key or AFRelationship ? > The UF key seems to be a unicode version of the F key and > for AFRelationship I would like to specify a "source" relationship. You can get the COSDictionary and write the specific key. I think it is the PDComplexFileSpecification class where you need to put the UF key. So do something like: PDComplexFileSpecification embeddedFile = ... COSDictionary dict = embeddedFile.getCOSDictionary(); dict.setString(COSNAME.UF,"Filename"); and for the AFRelationship you need to do similar low level manipulation. There are setter for all kind of data. If you want to add custom types you can also use the dict.setItem(...) to add other low level COS objects like arrays or other cos dictionaries. You can create Arrays with the COSArray object. "Relationship links are established from the document or parts of the document by use of the AF key, which contains an array of file specification dictionaries (as described above). Files associated with the entire document are represented by an AF key in the Catalog for the PDF file" So try to associate the files inside the catalog. This is maybe the simplest way. PDDocument doc = ... PDDocumentCatalog catalog = doc.getDocumentCatalog(); COSDictionary dict = catalog.getCOSDictionary(); COSArray array = new COSArray(); array.add(embeddedFile.getCOSDictionary()); // see below dict.setItem("AF",array); If this does not work and the note does not help you would need to buy the spec or get this informations of the "Annex E of ISO 19005-3:2012" to do this task. If this work, please give us a feedback. > Or maybe anybody has any example where I could have a look? > > thanks a lot in advance (and happy holidays)! > Jochen Best regards Thomas
