Duplicated
Last Updated: 02 Apr 2026 12:59 by ADMIN

When using Telerik Document Processing (PdfProcessing) for embedding Factur-X invoices, the produced PDF document is Non‑compliant with PDF-AF / Factur‑X according to the following validator: 

https://www.superpdp.tech/outils/validateur-facture-electronique/ 

Completed
Last Updated: 02 Apr 2026 11:49 by ADMIN
Release 2026.1.402 (2026 Q1)
When importing a document with an EmbeddedFile without a Subtype value.
Completed
Last Updated: 02 Apr 2026 11:49 by ADMIN
Release 2026.1.402 (2026 Q1)
ADMIN
Created by: Yoan
Comments: 0
Category: PdfProcessing
Type: Feature Request
0
Introduce an API for Cloning RadFixedPages.
Completed
Last Updated: 02 Apr 2026 11:49 by ADMIN
Release 2026.1.402 (2026 Q1)
ADMIN
Created by: Mihail
Comments: 0
Category: PdfProcessing
Type: Feature Request
0
Implement the Exponential Interpolation Function in PdfProcessing. Currently, NotSupportedFunctionTypeException is thrown with a message "Function type 2 is not supported."
Completed
Last Updated: 02 Apr 2026 11:49 by ADMIN
Release 2026.1.402 (2026 Q1)
PdfFormatProvider: Justified text alignment is not respected for specific text content.
Completed
Last Updated: 02 Apr 2026 11:47 by ADMIN
Release 2026.1.402 (2026 Q1)

After merging several PDF documents, some pages are blank indicating the following error:

Completed
Last Updated: 02 Apr 2026 11:47 by ADMIN
Release 2026.1.402 (2026 Q1)
Created by: Guillaume
Comments: 0
Category: PdfProcessing
Type: Feature Request
0

With the current implementation when exporting a Stitching function all the containing functions are exported as Sampled functions even if they originally have been imported as Exponential interpolation functions, which leads to an increase in the size of the document.

More information can be found in the PDF Specification.

Completed
Last Updated: 02 Apr 2026 11:47 by ADMIN
Release 2026.1.402 (2026 Q1)
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'.'
Completed
Last Updated: 02 Apr 2026 11:47 by ADMIN
Release 2026.1.402 (2026 Q1)
Created by: Rob
Comments: 0
Category: PdfProcessing
Type: Feature Request
2
Add support for PDF Portfolios.
Unplanned
Last Updated: 27 Mar 2026 14:04 by Benjamin
Created by: Benjamin
Comments: 0
Category: PdfProcessing
Type: Feature Request
1

https://loc.gov/preservation/digital/formats/fdd/fdd000532.shtml

PDF/A‑4f is a version of PDF/A designed for archival storage that:

  • Ensures long‑term visual and structural preservation
  • Is based on modern PDF 2.0
  • Allows embedded files (attachments) that are also archival‑compliant 

 

Unplanned
Last Updated: 24 Mar 2026 09:03 by Simon
Created by: Simon
Comments: 0
Category: PdfProcessing
Type: Feature Request
2
Add Write/Export support for XMP core properties. This includes the following steps:

Make Schema Properties Mutable
Implement Schema Serialization Methods
Extend XMP Writer for Serialization
Integrate XMP Writer with Document Export
Completed
Last Updated: 04 Mar 2026 13:48 by ADMIN
Release 2026.1.304 (2026 Q1)
When importing a document with many Path elements, the memory consumption could be very high.
Completed
Last Updated: 04 Mar 2026 13:48 by ADMIN
Release 2026.1.304 (2026 Q1)
The issue is that the document contains incorrect data that the CrossReferenceStream.LoadReferences method cannot parse.
Completed
Last Updated: 04 Mar 2026 13:48 by ADMIN
Release 2026.1.304 (2026 Q1)

With the current implementation, the compression setting is omitted:

  • streamWriter.Settings.StreamCompression
Completed
Last Updated: 04 Mar 2026 13:39 by ADMIN
Release 2026.1.304 (2026 Q1)
Created by: Graham
Comments: 0
Category: PdfProcessing
Type: Bug Report
1

As a result of the below missing operator, some of the glyphs can't be extracted from the CFFFontTable and the characters are not displayed in the PdfViewer:

The end user result is missing letter from the PDF content.

Completed
Last Updated: 04 Mar 2026 13:31 by ADMIN
Release 2026.1.304 (2026 Q1)
Stacktrace: 
   at System.Linq.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument)
   at System.Linq.Enumerable.Cast[TResult](IEnumerable source)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.MarkedContents.StructElementObject.CopyPropertiesTo(PostScriptReader reader, StructureElementsImportContext context, StructureElement element)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.MarkedContents.StructElementObject.CopyPropertiesTo(PostScriptReader reader, StructureElementsImportContext context, StructureElement element)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.MarkedContents.StructElementObject.CopyPropertiesTo(PostScriptReader reader, StructureElementsImportContext context, StructureElement element)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.MarkedContents.StructTreeChildrenObject.CopyPropertiesTo(PostScriptReader reader, StructureElementsImportContext context, StructureElementsCollection childElements)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.MarkedContents.StructTreeRootObject.CopyPropertiesTo(PostScriptReader reader, StructureElementsImportContext context)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.DocumentStructure.DocumentCatalog.CopyStructureTreeTo(PostScriptReader reader, IRadFixedDocumentImportContext context)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.DocumentStructure.DocumentCatalog.CopyPropertiesTo(PostScriptReader reader, IRadFixedDocumentImportContext context)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Import.RadFixedDocumentImportContext.BeginImportOverride()
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Import.BaseImportContext.BeginImport(Stream pdfFileStream)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Import.PdfImporter.Import(Stream input, IPdfImportContext context)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.PdfFormatProvider.<>c__DisplayClass19_0.<ImportOverride>b__0()
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.ExceptionHandling.ExecutionHandler.TryHandleExecution[E](Action operation)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.PdfFormatProvider.ImportOverride(Stream input, CancellationToken cancellationToken)
   at Telerik.Windows.Documents.Common.FormatProviders.FormatProviderBase`1.Import(Stream input, Nullable`1 timeout)
Duplicated
Last Updated: 17 Feb 2026 12:34 by ADMIN

Such a document can be considered invalid. However, it would be good to provide functionality to handle it.

Update: After reviewing the case, we concluded that the issue is caused by the document being linearized. Therefore, this item is being marked as a duplicate. Please follow the related public item to receive notifications about future status updates.

 

Completed
Last Updated: 13 Feb 2026 09:39 by ADMIN
Release 2026.1.210 (2026 Q1)
InvalidOperationException is thrown when the parser incorrectly interprets delimiter characters within literal strings as structural tokens instead of string data.
Completed
Last Updated: 13 Feb 2026 09:39 by ADMIN
Release 2026.1.210 (2026 Q1)
If the document contains an image that fails to be imported properly, an internal error occurs and the import process is interrupted leading to incomplete document with missing elements. 
Completed
Last Updated: 13 Feb 2026 09:39 by ADMIN
Release 2026.1.210 (2026 Q1)
Created by: Desislava
Comments: 0
Category: PdfProcessing
Type: Bug Report
0
It seems there is an issue when transforming the position of the original glyph data