[jira] [Created] (PDFBOX-5717) NullPointerException calling saveIncrementalForExternalSigning

["Daniele Ribaudo (Jira)" <ji...@apache.org>]

Daniele Ribaudo created PDFBOX-5717:
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             Summary: NullPointerException calling saveIncrementalForExternalSigning
                 Key: PDFBOX-5717
                 URL: https://issues.apache.org/jira/browse/PDFBOX-5717
             Project: PDFBox
          Issue Type: Bug
          Components: Signing
    Affects Versions: 3.0.0 PDFBox
            Reporter: Daniele Ribaudo
         Attachments: Cryptomathic_White_Paper_-_eIDAS_Compliant_Remote_eSigning.pdf

{{I tried to apply a digital signature to the attached PDF using the method PDDocument.saveIncrementalForExternalSigning in the release 3.0.0 of PDFBox but a NPE is thrown every time.}}

The same action executed on 2.0.x release is successfully completed.

Here you are a snipped code to reproduce the error:

{{PDDocument document = Loader.loadPDF(new File("Cryptomathic_White_Paper_-_eIDAS_Compliant_Remote_eSigning.pdf"));}}
{{document.addSignature(new PDSignature(), new SignatureOptions());}}
{{            }}
{{ExternalSigningSupport externalSigning = document.saveIncrementalForExternalSigning(new ByteArrayOutputStream());}}



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