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.
Unplanned
Last Updated:
10 Nov 2025 15:01
by Foxy
Created by:
Foxy
Comments:
0
Category:
PdfProcessing
Type:
Feature Request
Handle the import of documents with an invalid cross-reference stream offset.
Completed
Last Updated:
26 Jan 2026 14:27
by ADMIN
Release 2025.4.1216 (2025 Q4)
Created by:
Sebastian
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
Resaving a document with Acrobat throws an error due to invalid Info dictionary in document trailer.
Completed
Last Updated:
21 Jan 2026 14:56
by ADMIN
Release 2025.4.1319 (2025 Q4)
Created by:
Alain
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
Setting the ComplianceLevel to PdfA3B and the TaggingStrategy to UseExisting when exporting a PDF document leads to the following Error reported by VeraPdf:
Specification: ISO 19005-3:2012, Clause: 6.2.11.5, Test number: 1 For every font embedded in a conforming file and used for rendering, the glyph width information in the font dictionary and in the embedded font program shall be consistent. Glyph width 274.4140625 in the embedded font program is not consistent with the Widths entry of the font dictionary (value 272)
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:
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)
Unplanned
Last Updated:
10 Feb 2026 07:27
by Devron
Created by:
Devron
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
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)
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 13:48
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 13:48
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.
Duplicated
Last Updated:
02 Apr 2026 12:59
by ADMIN
Created by:
Benjamin
Comments:
1
Category:
PdfProcessing
Type:
Bug Report
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 11:47
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:
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 11:49
by ADMIN
Release 2026.1.402 (2026 Q1)
ADMIN
Created by:
Martin
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
When importing a document with an EmbeddedFile without a Subtype value.
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
Duplicated
Last Updated:
09 Apr 2026 12:09
by ADMIN
Created by:
Piotr
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
In Development
Last Updated:
17 Apr 2026 10:19
by ADMIN
Created by:
Simon
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
XMP metadata is unescaped during import/export.
Unplanned
Last Updated:
29 Apr 2026 10:18
by Greg
Created by:
Greg
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
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.
Unplanned
Last Updated:
30 Apr 2026 07:20
by Adrian
Created by:
Adrian
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
NullReferenceException is thrown then exporting a document with a Type 3 font with missing/invalid Unicode mapping.
Unplanned
Last Updated:
12 Jan 2017 16:11
by ADMIN
ADMIN
Created by:
Deyan
Comments:
0
Category:
PdfProcessing
Type:
Feature Request
From R1 2017 all annotations (including sound and video) are supported for import-export scenarios by using PdfStreamWriter class. These feedback item will be opened as we may add API for generating and inserting new sound annotations from scratch in the file.
Completed
Last Updated:
02 Jul 2016 21:05
by ADMIN
ADMIN
Created by:
Deyan
Comments:
1
Category:
PdfProcessing
Type:
Bug Report
When a source RadFixedDocument is merged to a target RadFixedDocument, the content of the source document is cleared.