Recently Updated
Completed
Last Updated:
02 Apr 2026 11:47
by ADMIN
Release 2026.1.402 (2026 Q1)
Created by:
Foxy
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
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
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)
Created by:
Siva
Comments:
1
Category:
PdfProcessing
Type:
Bug Report
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
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
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
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
Make Schema Properties Mutable
Implement Schema Serialization Methods
Extend XMP Writer for Serialization
Integrate XMP Writer with Document Export
In Development
Last Updated:
10 Mar 2026 14:05
by ADMIN
Created by:
Mario
Comments:
0
Category:
PdfProcessing
Type:
Feature Request
Expose internal GrayColor object.
Completed
Last Updated:
04 Mar 2026 13:48
by ADMIN
Release 2026.1.304 (2026 Q1)
Created by:
Mattia
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
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)
ADMIN
Created by:
Martin
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
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
Created by:
Martin
Comments:
0
Category:
PdfProcessing
Type:
Feature Request
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
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)
Created by:
Bhaskar
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
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
Created by:
Eli
Comments:
0
Category:
PdfProcessing
Type:
Feature Request
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)
Created by:
David
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
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)
Created by:
Manisai
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
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
It seems there is an issue when transforming the position of the original glyph data
Completed
Last Updated:
13 Feb 2026 09:39
by ADMIN
Release 2026.1.210 (2026 Q1)
Created by:
Vitalii
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
SkiaImageFormatProvider: Blacked out images due to incorrectly resolved clipping.
Completed
Last Updated:
13 Feb 2026 09:39
by ADMIN
Release 2026.1.210 (2026 Q1)
Created by:
Janson
Comments:
0
Category:
PdfProcessing
Type:
Feature Request
Introduce support for TimeStampServer when using the PdfStreamSigner.
Completed
Last Updated:
13 Feb 2026 09:39
by ADMIN
Release 2026.1.210 (2026 Q1)
ADMIN
Created by:
Martin
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
The unexpected border array:
14 0 obj
<< /A 16 0 R /Border [ 10 10 10 60 ] /Rect [ 411 36 565 48 ] /Subtype /Link /Type /Annot >>
endobj"In PDF 1.0, the array consists of three numbers defining the horizontal corner radius, vertical corner radius, and border width, all in default user space units. If the corner radii are 0, the border has square (not rounded) corners; if the border width is 0, no border is drawn. (See implementation note 81 in Appendix H.)
In PDF 1.1, the array may have a fourth element, an optional dash arraydefining a pattern of dashes and gaps to be used in drawing the border."
Completed
Last Updated:
13 Feb 2026 09:39
by ADMIN
Release 2026.1.210 (2026 Q1)
Created by:
Jeff
Comments:
2
Category:
PdfProcessing
Type:
Bug Report
CryptographicException is thrown when importing AES encrypted document with DocumentInfo.