PDF export fails after HTML blocks containing empty or named anchors are imported and inserted into a RadFlowDocument through ReplaceText.

HTML importer creates hyperlink field markers for <a name="...">. During block replacement, cloned FieldCharacter instances lose FieldInfo, leaving orphan field markers. PDF exporter later dereferences FieldInfo and throws a NullReferenceException.

Wrapped table cell text is incorrectly split by hyphens ("-").

When two PDFs containing AcroForm fields are merged with PdfStreamWriter, the generated PDF contains page widget annotations whose parent field dictionaries are not correctly registered in the document-level /AcroForm/Fields tree.

The issue is reproducible by merging the same four-page form twice. The resulting PDF contains all widget annotations, but PDF viewers do not resolve the second form’s interactive fields correctly.

Merging/importing PDFs with duplicate field names can create one logical RadioButtonField containing widgets from multiple source field nodes. The first node initializes its widget options. Reused duplicate nodes can add additional widgets without assigning RadioOption instances.

The widgets then contain valid "/Off" appearance states, but their model Option property is null. During export, FieldPropertiesExporter accesses widget.Option.Value, causing a "NullReferenceException: Object reference not set to an instance of an object."

Endless loop on PDF export when an empty string is assigned to text fields with no source /V and auto-sized default appearance (/DA with 0 Tf).

Workaround: Instead of an empty string (""), set the value to null. Or don't set it at all and leave it unmodified.

InvalidCastException is thrown when importing a document that contains structure elements (StructElem) with StructureType (/S) defined with an incorrect integer type (PdfInt) instead of the expected PdfName type.

When the text is long and AllowScroll is false, the text will be visible, but will be misplaced. The issue is caused by the length of the text because the same field with a shorter text that can fit in the widget's rectangle will be displayed correctly.

When signing a PDF document with an image using the PdfStreamSigner, the signature is broken. This is the used approach for signing the document: https://www.telerik.com/document-processing-libraries/documentation/libraries/radpdfprocessing/features/digital-signature/pdfstreamsigner

However, instead of using the DrawText method, the DrawImage method is used.

 

NotImplementedException is thrown for GetCapHeight method of CFFFontSource.

System.NotImplementedException: The method or operation is not implemented.
   at Telerik.Windows.Documents.Core.Fonts.Type1.CFFFormat.CFFFontSource.GetCapHeight()
   at Telerik.Windows.Documents.Core.Fonts.FontSource.get_CapHeight()
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.Fonts.FontDescriptor.CopyRequiredButType3FontPropertiesFrom(FontBase font)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.Fonts.FontDescriptor.CopyPropertiesFrom(IPdfExportContext context, FontBase font)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.Fonts.CidFontObject.CopyPropertiesFromOverride(IPdfExportContext context, FontBase font)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.Fonts.Type0FontObject.CopyPropertiesFromOverride(IPdfExportContext context, FontBase font)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Export.PdfExporter.WriteFontsFromContext(PdfWriter writer, IPdfExportContext context)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Export.PdfExporter.Export(IRadFixedDocumentExportContext context, Stream output)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.ExceptionHandling.ExecutionHandler.TryHandleExecution[E](Action operation)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.PdfFormatProvider.ExportOverride(RadFixedDocument document, Stream output, CancellationToken cancellationToken)
   at Telerik.Windows.Documents.Common.FormatProviders.FormatProviderBase`1.Export(T document, Stream output, Nullable`1 timeout)

Corrupted character spacing when exporting PDF/A compliance document with embedded subset fonts.

Glyphs Overlap Due to Incorrect Casting of Glyph Widths from Double to Int.

InvalidOperationException is thrown when exporting a PDF document with a set compliance that processes Type3 font glyphs.

Workaround: Before export, set compliance to None.

 

Update the "fx:Version" metadata mapping for the XRechnung conformance level.

MethodAccessException is thrown when exporting documents using .NET Standard references in a .NET Framework environment.

PdfProcessing: Signature validation reports file as "modified" while Adobe Acrobat reports "not modified".

NullReferenceException is thrown when importing a document with missing Owner (O) in tagged structure attributes.

The stack shows 1070 repeated frames of:

• StructElementObject.ProcessChildPrimitive(...)
• StructElementObject.CopyPropertiesTo(...)

The StructureTree import is traversing a cyclic StructElement graph (or equivalent re-entrant child chain) without a recursion guard.

During this recursion, indirect object resolution repeatedly re-enters the same compressed object:

• reference.ObjectNumber = 554
• context.CurrentIndirectReference.ObjectNumber = 554
• TryGetIndirectObject(554, ...) == false at re-entry

PdfStreamWriter: Duplicated pages when merging documents with identical page content streams but different per-page Resources.

Workaround: Use the RadFixedDocument.Merge() method instead of the PdfStreamWriter.

Error 141 TYPECHECK on Lexmark printer when printing DPL-generated PDF file.

Add support for XRechnung compliance.