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signserver 3.7 Unable to sign pdf doc already signed in sha256

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Asmo
2020-05-27
2020-06-12
  • Asmo

    Asmo - 2020-05-27

    Hello,

    When we try to sign a PDF document in version lower than 1.6 already signed
    in SHA256, we encounter the following error:

    Can not upgrade an already signed PDF and a higher version is required to
    support the configured digest algorithm

    We are using signserver in version 3.7, is there a reason for this error?
    Is it possible to override it? Is the problem fixed in another version of
    signserver?

    Thank you

     
  • Markus Kilås

    Markus Kilås - 2020-06-12

    Can you try with the latest version? As 3.7 is very old it is possible this has changed in later versions.
    Does the PDF verifies correctly even though the PDF has lower than 1.6 version and a SHA-256 signature?

    Cheers,
    Markus
    PrimeKey Solutions

     

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