Telerik Document Processing Feedback Portal

In Development

Last Updated: 17 Apr 2026 10:19 by ADMIN

PdfProcessing: XMP metadata is unescaped during import/export

Created by: Simon

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: XMP metadata is unescaped during import/export

XMP metadata is unescaped during import/export.

In Development

Last Updated: 17 Apr 2026 16:51 by ADMIN

PdfProcessing: PdfStreamWriter: Duplicated page content due to incorrect caching mechanism

Created by: Mattia

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: PdfStreamWriter: Duplicated page content due to incorrect caching mechanism

Duplicated page content due to an incorrect caching mechanism.

Unplanned

Last Updated: 15 Apr 2026 10:17 by David

PdfProcessing: PdfStreamWriter: Slow performance during page splitting

Created by: David

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: PdfStreamWriter: Slow performance during page splitting

PdfStreamWriter stream-copy page splitting performance is much slower than expected in some cases. When working with larger PDF files, the processing time can increase a lot and cause noticeable delays.

Duplicated

Last Updated: 09 Apr 2026 12:09 by ADMIN

PdfProcessing: Incorrect rendering of CMYK color space after import/export

Created by: Piotr

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: Incorrect rendering of CMYK color space after import/export

Unplanned

Last Updated: 27 Mar 2026 14:04 by Benjamin

PdfProcessing: Add support for PDF/A-4F compliance level

Created by: Benjamin

Comments: 0

Category: PdfProcessing

Type: Feature Request

PdfProcessing: Add support for PDF/A-4F compliance level

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

PdfProcessing: XMP write support for core properties

Created by: Simon

Comments: 0

Category: PdfProcessing

Type: Feature Request

PdfProcessing: XMP write support for core properties

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: 02 Apr 2026 11:49 by ADMIN

Release 2026.1.402 (2026 Q1)

ADMIN

PdfProcessing: Introduce API for Cloning RadFixedPages

Created by: Yoan

Comments: 0

Category: PdfProcessing

Type: Feature Request

PdfProcessing: Introduce API for Cloning RadFixedPages

Introduce an API for Cloning RadFixedPages.

Completed

Last Updated: 02 Apr 2026 11:49 by ADMIN

Release 2026.1.402 (2026 Q1)

ADMIN

PdfProcessing: NullReferenceException is thrown when importing a document with EmbeddedFile without Subtype

Created by: Martin

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: NullReferenceException is thrown when importing a document with EmbeddedFile without Subtype

When importing a document with an EmbeddedFile without a Subtype value.

Completed

Last Updated: 02 Apr 2026 11:47 by ADMIN

Release 2026.1.402 (2026 Q1)

PdfProcessing: InvalidCastException when importing a document

Created by: Siva

Comments: 1

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'.'

Completed

Last Updated: 02 Apr 2026 11:47 by ADMIN

Release 2026.1.402 (2026 Q1)

PdfProcessing: PdfStreamWriter: Merging PDF documents causes blank pages

Created by: Foxy

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: PdfStreamWriter: Merging PDF documents causes blank pages

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

Duplicated

Last Updated: 02 Apr 2026 12:59 by ADMIN

PdfProcessing: Factur-X invoice (XML file) not embedded correctly in PDF according to Super PDP validator

Created by: Benjamin

Comments: 1

Category: PdfProcessing

Type: Bug Report

PdfProcessing: Factur-X invoice (XML file) not embedded correctly in PDF according to Super PDP validator

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)

WordsProcessing: PdfFormatProvider: Justified text alignment is not respected for specific text content

Created by: Ryan

Comments: 0

Category: PdfProcessing

Type: Bug Report

WordsProcessing: PdfFormatProvider: Justified text alignment is not respected for specific text content

PdfFormatProvider: Justified text alignment is not respected for specific text content.

In Development

Last Updated: 10 Mar 2026 14:05 by ADMIN

PdfProcessing: Expose internal GrayColor object

Created by: Mario

Comments: 0

Category: PdfProcessing

Type: Feature Request

PdfProcessing: Expose internal GrayColor object

Expose internal GrayColor object.

Completed

Last Updated: 04 Mar 2026 13:48 by ADMIN

Release 2026.1.304 (2026 Q1)

ADMIN

PdfProcessing: StackOverflowException is thrown with a specific document containing StructureTree

Created by: Martin

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: StackOverflowException is thrown with a specific document containing StructureTree

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)

ADMIN

PdfProcessing: PdfStreamWriter: Apply encoding filter from StreamCompression setting when exporting XObject

Created by: Martin

Comments: 0

Category: PdfProcessing

Type: Feature Request

PdfProcessing: PdfStreamWriter: Apply encoding filter from StreamCompression setting when exporting XObject

With the current implementation, the compression setting is omitted:

streamWriter.Settings.StreamCompression

Completed

Last Updated: 02 Apr 2026 11:47 by ADMIN

Release 2026.1.402 (2026 Q1)

PdfProcessing: Add support for PDF Portfolios

Created by: Rob

Comments: 0

Category: PdfProcessing

Type: Feature Request

PdfProcessing: Add support for PDF Portfolios

Add support for PDF Portfolios.

Unplanned

Last Updated: 10 Feb 2026 07:27 by Devron

PdfProcessing: .NET Standard: ArgumentOutOfRangeException: 'Index was out of range. Must be non-negative and less than the size of the collection. (Parameter 'index')' during import

Created by: Devron

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: .NET Standard: ArgumentOutOfRangeException: 'Index was out of range. Must be non-negative and less than the size of the collection. (Parameter 'index')' during import

This exception was originally thrown at this call stack:
System.ThrowHelper.ThrowArgumentOutOfRange_IndexMustBeLessException()
System.Collections.Generic.List<T>.this[int].get(int)
Telerik.Windows.Documents.Core.PostScript.Data.PostScriptArray.GetElementAs<T>(int)
Telerik.Windows.Documents.Core.Fonts.Type1.Type1Format.Dictionaries.Type1PostScriptObject.GetGlyphName(ushort)
Telerik.Windows.Documents.Core.Fonts.Type1.Type1Format.Type1FontSource.GetGlyphName(ushort)
Telerik.Windows.Documents.Core.Fonts.Type1.Type1Format.Type1FontSource.GetAdvancedWidthOverride(int)
Telerik.Windows.Documents.Core.Fonts.FontSource.GetAdvancedWidth(int)
Telerik.Windows.Documents.Fixed.Model.Fonts.StandardFont.GetActualWidth(Telerik.Windows.Documents.Fixed.Model.Data.CharCode)
Telerik.Windows.Documents.Fixed.Model.Fonts.SimpleFont.GetWidthOverride(Telerik.Windows.Documents.Fixed.Model.Data.CharCode)
Telerik.Windows.Documents.Fixed.Model.Fonts.FontBase.GetWidth(Telerik.Windows.Documents.Fixed.Model.Data.CharCode)

Completed

Last Updated: 04 Mar 2026 13:31 by ADMIN

Release 2026.1.304 (2026 Q1)

PdfProcessing: ArgumentNullException: 'Value cannot be null. (Parameter 'source')' when importing a document which structure tree contains null or empty child elements

Created by: Bhaskar

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: ArgumentNullException: 'Value cannot be null. (Parameter 'source')' when importing a document which structure tree contains null or empty child elements

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)

Completed