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Request a Feature Report a Bug
Completed
Last Updated: 19 May 2026 20:44 by ADMIN
Release 2026.3.519 (2026 Q2)
ADMIN
PdfProcessing: A CryptographicException because MD5 not available on Blazor WASM
Created by: Martin
Comments: 0
Category: PdfProcessing
Type: Bug Report
0
PdfProcessing: A CryptographicException because MD5 not available on Blazor WASM
Grid PDF Export fails on Blazor WASM with CryptographicException: MD5.

Root Cause: 
PdfExportContext.CreateDocumentId() calls System.Security.Cryptography.MD5.Create(). MD5 is not available in the .NET WASM runtime by default and throws CryptographicException.
Completed
Last Updated: 14 May 2026 16:33 by ADMIN
Release 2026.2.514 (2026 Q2)
PdfProcessing: NullReferenceException is thrown when exporting a document with a Type 3 font with missing/invalid Unicode mapping
Created by: Adrian
Comments: 0
Category: PdfProcessing
Type: Bug Report
1
PdfProcessing: NullReferenceException is thrown when exporting a document with a Type 3 font with missing/invalid Unicode mapping
NullReferenceException is thrown then exporting a document with a Type 3 font with missing/invalid Unicode mapping.
Completed
Last Updated: 19 May 2026 20:44 by ADMIN
Release 2026.3.519 (2026 Q2)
PdfProcessing: NetStandard: Missing content due to empty glyph outlines in embedded TrueType font subsets
Created by: Greg
Comments: 0
Category: PdfProcessing
Type: Bug Report
1
PdfProcessing: NetStandard: Missing content due to empty glyph outlines in embedded TrueType font subsets

NetStandard: Missing content due to empty glyph outlines in embedded TrueType font subsets.

Workaround 1

Fully embed the fonts in the result PDF document:

PdfFormatProvider pdfFormatProvider = new PdfFormatProvider();
pdfFormatProvider.ExportSettings.FontEmbeddingType = FontEmbeddingType.Full;

Workaround 2

Switch to a .NET Framework project environment and use the .NET Framework PdfProcessing packages.

Completed
Last Updated: 14 May 2026 16:33 by ADMIN
Release 2026.2.514 (2026 Q2)
PdfProcessing: XMP metadata is unescaped during import/export
Created by: Simon
Comments: 0
Category: PdfProcessing
Type: Bug Report
1
PdfProcessing: XMP metadata is unescaped during import/export
XMP metadata is unescaped during import/export.
Completed
Last Updated: 14 May 2026 16:33 by ADMIN
Release 2026.2.514 (2026 Q2)
PdfProcessing: PdfStreamWriter: Duplicated page content due to incorrect caching mechanism
Created by: Mattia
Comments: 0
Category: PdfProcessing
Type: Bug Report
2
PdfProcessing: PdfStreamWriter: Duplicated page content due to incorrect caching mechanism
Duplicated page content due to an incorrect caching mechanism.
Completed
Last Updated: 14 May 2026 16:33 by ADMIN
Release 2026.2.514 (2026 Q2)
PdfProcessing: PdfStreamWriter: Slow performance during page splitting
Created by: David
Comments: 0
Category: PdfProcessing
Type: Bug Report
0
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.

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
0
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
1
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
1
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
1
PdfProcessing: PdfStreamWriter: Merging PDF documents causes blank pages

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

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
0
WordsProcessing: PdfFormatProvider: Justified text alignment is not respected for specific text content
PdfFormatProvider: Justified text alignment is not respected for specific text content.
Completed
Last Updated: 14 May 2026 16:33 by ADMIN
Release 2026.2.514 (2026 Q2)
PdfProcessing: Expose internal GrayColor object
Created by: Mario
Comments: 0
Category: PdfProcessing
Type: Feature Request
4
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
1
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
1
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
2
PdfProcessing: Add support for PDF Portfolios
Add support for PDF Portfolios.
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
1
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
Last Updated: 04 Mar 2026 13:48 by ADMIN
Release 2026.1.304 (2026 Q1)
PdfProcessing: High memory consumption when importing a document with many Path/Image elements
Created by: Mattia
Comments: 0
Category: PdfProcessing
Type: Bug Report
2
PdfProcessing: High memory consumption when importing a document with many Path/Image elements
When importing a document with many Path elements, the memory consumption could be very high.
Completed
Last Updated: 14 May 2026 16:33 by ADMIN
Release 2026.2.514 (2026 Q2)
PdfProcessing: Provide support for signing multiple Signature fields
Created by: Janson
Comments: 0
Category: PdfProcessing
Type: Feature Request
0
PdfProcessing: Provide support for signing multiple Signature fields
When signing more than one signature field, the previous signatures are invalidated.
Completed
Last Updated: 13 Feb 2026 09:39 by ADMIN
Release 2026.1.210 (2026 Q1)
PdfProcessing: PdfStreamSigner: Introduce TimeStamp server support.
Created by: Janson
Comments: 0
Category: PdfProcessing
Type: Feature Request
1
PdfProcessing: PdfStreamSigner: Introduce TimeStamp server support.
Introduce support for TimeStampServer when using the PdfStreamSigner.
Completed
Last Updated: 13 Feb 2026 09:39 by ADMIN
Release 2026.1.210 (2026 Q1)
PdfProcessing: CryptographicException is thrown when importing AES encrypted document with DocumentInfo
Created by: Jeff
Comments: 2
Category: PdfProcessing
Type: Bug Report
2
PdfProcessing: CryptographicException is thrown when importing AES encrypted document with DocumentInfo
CryptographicException is thrown when importing AES encrypted document with DocumentInfo.
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