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https://issues.apache.org/jira/browse/PDFBOX-2546?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15434672#comment-15434672
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Miklos Krivan commented on PDFBOX-2546:
---------------------------------------
The problem still exists in version 2.0.2 see my small example below:
{quote}
Caused by: java.lang.IllegalArgumentException: resourceDictionary is null
at org.apache.pdfbox.pdmodel.PDResources.<init>(PDResources.java:70)
at
org.apache.pdfbox.multipdf.PDFMergerUtility.appendDocument(PDFMergerUtility.java:559)
at
org.apache.pdfbox.multipdf.PDFMergerUtility.mergeDocuments(PDFMergerUtility.java:261)
{quote}
{code:java}
// T is my document object type
public <T> ByteArrayOutputStream createDocumentStream(List<T> documents) {
PDFMergerUtility mergedDoc = new PDFMergerUtility();
ByteArrayOutputStream mergedOutputstream = new ByteArrayOutputStream();
for (T doc : documents) {
ByteArrayOutputStream baos = createDocumentStream(doc);
// I use Apache FOP 2.1 to generate PDF document
// when odd number of pages exists I want to add one new empty page
try (PDDocument currentDoc = PDDocument.load(new
ByteArrayInputStream(baos.toByteArray()),
MemoryUsageSetting.setupMainMemoryOnly())) {
int numberOfPages = currentDoc.getNumberOfPages();
if (numberOfPages % 2 == 1) { // when odd number of pages
PDPage lastPage = currentDoc.getPage(numberOfPages - 1);
PDPage emptyPage = new PDPage(lastPage.getMediaBox());
emptyPage.setResources(lastPage.getResources());
// without the above line IllegalArgumentException:
resourceDictionary is null raised
// at mergeDocuments method call below
currentDoc.addPage(emptyPage);
baos.reset();
currentDoc.save(baos);
}
}
mergedDoc.addSource(new ByteArrayInputStream(baos.toByteArray()));
}
mergedDoc.setDestinationStream(mergedOutputstream);
mergedDoc.mergeDocuments(MemoryUsageSetting.setupMainMemoryOnly());
return mergedOutputstream;
}
{code}
> IllegalArgumentException: resourceDictionary is null in PDFMerger
> -----------------------------------------------------------------
>
> Key: PDFBOX-2546
> URL: https://issues.apache.org/jira/browse/PDFBOX-2546
> Project: PDFBox
> Issue Type: Bug
> Components: Utilities
> Affects Versions: 2.0.0
> Reporter: Tilman Hausherr
> Assignee: John Hewson
> Fix For: 2.0.0
>
>
> This was first mentioned on the user mailing list by [~giladd]:
> When merging the PDF 1.7 spec with another PDF file this exception appears:
> {code}
> Exception in thread "main" java.lang.IllegalArgumentException:
> resourceDictionary is null
> at org.apache.pdfbox.pdmodel.PDResources.<init>(PDResources.java:68)
> at
> org.apache.pdfbox.util.PDFMergerUtility.appendDocument(PDFMergerUtility.java:448)
> at
> org.apache.pdfbox.util.PDFMergerUtility.mergeDocuments(PDFMergerUtility.java:190)
> at org.apache.pdfbox.tools.PDFMerger.merge(PDFMerger.java:70)
> at org.apache.pdfbox.tools.PDFMerger.main(PDFMerger.java:46)
> at org.apache.pdfbox.tools.PDFBox.main(PDFBox.java:76)
> {code}
> I did some debugging, it happens on the very first page. The resources is
> indeed null, but it exists when viewing with PDFDebugger.
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