SecureBlackbox 16: When I use Acrobat 6.0, click the signature, and click Signature Properties, why do I get a bad parameter error in Acrobat?

Note: This article applies only to SecureBlackbox Legacy. For future development please consider using the latest version.

Try to assign the nonempty value to the ElPDFSignature.AuthorName property. Though this property is marked as optional in the PDF specification, Adobe Reader 6 fails to validate signatures with an empty AuthorName (this error is fixed in Adobe Reader 7).

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