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https://issues.apache.org/jira/browse/PDFBOX-3323?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15251877#comment-15251877
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Alexander Kriegisch commented on PDFBOX-3323:
---------------------------------------------
Okay, I also did this and the document gets created successfully and Acrobat
Reader shows the desired infos:
{code}
logger.trace("Setting document info (title, author, subject) for merged
PDF");
PDDocumentInformation documentInformation = new PDDocumentInformation();
documentInformation.setTitle(title);
documentInformation.setCreator(creator);
documentInformation.setSubject(subject);
merger.setDestinationDocumentInformation(documentInformation);
logger.trace("Setting XMP metadata (title, author, subject) for merged
PDF");
COSStream cosStream = new COSStream();
try(
InputStream stream =
PdfBoxWrapper.class.getResourceAsStream("/my/resource/XMP_Metadata.xml");
BufferedReader reader = new BufferedReader(new InputStreamReader(stream));
OutputStream xmpCosStream = cosStream.createOutputStream()
) {
String xmpTemplate = reader.lines().collect(Collectors.joining("\n"))
.replace("###title###", title)
.replace("###creator###", creator)
.replace("###subject###", subject);
xmpCosStream.write(xmpTemplate.getBytes());
PDMetadata newMetadata = new PDMetadata(cosStream);
merger.setDestinationMetadata(newMetadata);
}
merger.mergeDocuments(MemoryUsageSetting.setupMainMemoryOnly());
{code}
Unfortunately, veraPDF validator says:
> Specification: ISO 19005-1:2005, Clause: 6.7.3, Test number: 1
>
> If a document information dictionary does appear at a document, then all of
> its entries that have analogous properties in predefined XMP schemas, shall
> also be embedded in the file in XMP form with equivalent values.
>
> Failed
> Cannot set destination meta data in PDFMergerUtility
> ----------------------------------------------------
>
> Key: PDFBOX-3323
> URL: https://issues.apache.org/jira/browse/PDFBOX-3323
> Project: PDFBox
> Issue Type: Improvement
> Affects Versions: 1.8.9, 2.0.0
> Reporter: Alexander Kriegisch
> Labels: merge, metadata
>
> When merging multiple PDFs into one compound document via
> {{PDFMergerUtility}}, meta data like title, author, subject cannot be set but
> seem to be taken from one of the input documents. This is usually not the
> desired behaviour because as a user I have no direct influence on the meta
> data. As a user I would like to explicitly set or at least overwrite certain
> meta data for the destination document. Currently I can only set the
> destination stream or file name, but not the meta data.
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