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https://issues.apache.org/jira/browse/PDFBOX-1533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13627553#comment-13627553
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Maruan Sahyoun commented on PDFBOX-1533:
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Hi Christian,
unfortunately 1.8.0 had a bug so in certain conditions the newly written PDF
was incomplete. This will be addressed in 1.8.1. The fix is already available
in trunk. What you could do is either use 1.7.1 with the
PDDocument#loadNonSeq() or build 1.8.1 for yourself. 1.8.1 should be out soon
though.
BR Maruan
> When merging certain PDF's several odd looking empty pages occure in the
> result
> -------------------------------------------------------------------------------
>
> Key: PDFBOX-1533
> URL: https://issues.apache.org/jira/browse/PDFBOX-1533
> Project: PDFBox
> Issue Type: Bug
> Components: Utilities
> Affects Versions: 1.7.1
> Reporter: Christian Connert
>
> Unfortunately I cannot attach a input file for this case as it contains
> confidential customer data, but I'll try to explain the problem in depth so
> you hopefully are able to track it down.
> When we merg certain PDF's with the PDFMergerUtility the result contains
> serveral empty pages at the end of the document. It seems like that only
> certain pdf versions are effected (i.p.: 1.5 (Acrobat 6.x)).
> I tracked the problem down to the the following part in the appendDocument
> method of the PDFMergerUtility:
> //finally append the pages
> List<PDPage> pages = srcCatalog.getAllPages();
> Iterator<PDPage> pageIter = pages.iterator();
> while( pageIter.hasNext() )
> {
> PDPage page = pageIter.next();
> PDPage newPage =
> new PDPage( (COSDictionary)cloner.cloneForNewDocument(
> page.getCOSDictionary() ) );
> newPage.setCropBox( page.findCropBox() );
> newPage.setMediaBox( page.findMediaBox() );
> newPage.setRotation( page.findRotation() );
> destination.addPage( newPage );
> }
> The problem is that call to srcCatalog.getAllPages(); returns for expamle 6
> PDPage objects, but for the same input document, the call to
> source.getNumberOfPages() returns only 2. Thus we add 4 odd empty pages to
> the result document.
> I hope this description is good enought to figure out the problem. Don't
> hesitate to ask for further details.
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