[jira] [Created] (PDFBOX-3328) "COSStream has been closed and cannot be read" despite using importPage

["Tilman Hausherr (JIRA)" <ji...@apache.org>]

Tilman Hausherr created PDFBOX-3328:
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             Summary: "COSStream has been closed and cannot be read" despite using importPage
                 Key: PDFBOX-3328
                 URL: https://issues.apache.org/jira/browse/PDFBOX-3328
             Project: PDFBox
          Issue Type: Bug
    Affects Versions: 2.0.1, 2.0.0, 2.1.0
            Reporter: Tilman Hausherr


By Simon G. on the user mailing list:
{quote}
I'm trying to copy a page from a PDF and adding it to a new (empty) document but I'm running into an issue when I close the source PDF file before I save the destination file.
{code}
Here's a code snippet:
    // Load up some document from which to copy a page
    PDDocument documentA = PDDocument.load(new File("a.pdf"));

    // Create a new document and import the first page of the a document
    PDDocument newDocument = new PDDocument();
    newDocument.importPage(documentA.getPage(0));

    // Close the A document as we don't need it any longer
    documentA.close();

    // Save the new document, this throws:
    // COSStream has been closed and cannot be read. Perhaps its enclosing PDDocument has been closed?
    // java.io.IOException: COSStream has been closed and cannot be read. Perhaps its enclosing PDDocument has been closed?
    newDocument.save(new File("new.pdf"));
{code}
I get a similar exception when using the PDFMergerUtility class.

I need to copy quite a few pages into a single output document and I'd like to avoid keeping all those source documents open both at the source and in the destination document.
{quote}



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