PdfProcessing: InvalidCastException when importing a document

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Completed

Last Updated: 02 Apr 2026 11:47 by ADMIN

Release 2026.1.402 (2026 Q1)

Siva

Created on: 12 Mar 2026 07:03

Category: PdfProcessing

Type: Bug Report

PdfProcessing: InvalidCastException when importing a document

System.InvalidCastException: 'Unable to cast object of type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfStream' to type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.MarkedContents.ReferencedObject'.'

1 comment

ADMIN

Dess | Tech Support Engineer, Principal

Posted on: 26 Mar 2026 15:42

Hello,

Once the item is marked as Completed, a new exception type will be introduced. This would allow to continue processing the document import operation:

provider.ImportSettings.DocumentUnhandledException += (s, args) =>
{
    if (args.Exception is InvalidStructureTreeException)
    {
        args.Handled = true; // Mark the exception as handled to continue processing.
    }
};

Regards,
Dess | Tech Support Engineer, Principal
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