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  1. PDFBox
  2. PDFBOX-1453

NPE saving modified encrypted document

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 1.8.7, 1.8.9, 1.8.10, 2.0.0
    • Fix Version/s: 1.8.10
    • Component/s: Crypto, Writing
    • Labels:
      None

      Description

      I posted this on the mailing list but got no answer. I'm describing here some behaviors that are triggering NPE when saving a modified pdf document.
      What I'm trying to do is to open an encrypted document, modify it, save it back (I attached my test project). The three tests I made they all end up with a NPE but they work if I turn on setAllSecurityToBeRemoved (and I don't want security to be removed).

      First test:
      1- input is a doc encrypted with owner pwd having the modify permission on.
      2- The document is loaded and decrypted using owner pwd.
      3- permissions.isOwnerPermission() is true which is correct
      4- permissions.canModify() is true which is correct
      5- modify the doc and save throws a NPE which is NOT correct

      Second test
      1- input is a doc encrypted with owner pwd having the modify permission on.
      2- The document is loaded but not decrypted
      3- permissions.isOwnerPermission() is true, why? I didn't provide any owner pwd I should not have owner permissions.
      4- permissions.canModify() is true which is correct
      5- modify the doc and save throws a NPE which is NOT correct

      Third test
      1- input is a doc encrypted with owner pwd having NO permission.
      2- The document is loaded and decrypted using owner pwd.
      3- permissions.isOwnerPermission() is true which is correct
      4- permissions.canModify() is true, why? I can modify the doc because I have owner permission but the Modify should be off.
      5- modify the doc and save throws a NPE which is NOT correct

        Attachments

        1. TestEnc.zip
          96 kB
          Andrea Vacondio

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              • Assignee:
                lehmi Andreas Lehmkühler
                Reporter:
                torakiki Andrea Vacondio
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                Dates

                • Created:
                  Updated:
                  Resolved: