Telerik Document Processing Feedback Portal

In Development

Last Updated: 02 Jul 2026 16:54 by ADMIN

PdfProcessing: Handle the import of documents with missing FontDescriptor definition

Created by: Adam

Comments: 0

Category: PdfProcessing

Type: Feature Request

PdfProcessing: Handle the import of documents with missing FontDescriptor definition

By specification, the FontDescriptor is required except for Standard fonts. However, if some font has only a declaration of FontDescriptor but with a missing definition, the document is not exported successfully.

In Development

Last Updated: 02 Jul 2026 16:19 by ADMIN

PdfProcessing: Update the "fx:Version" metadata mapping for the XRechnung conformance level

Created by: Nils

Comments: 0

Category: PdfProcessing

Type: Feature Request

PdfProcessing: Update the "fx:Version" metadata mapping for the XRechnung conformance level

Update the "fx:Version" metadata mapping for the XRechnung conformance level.

In Development

Last Updated: 02 Jul 2026 15:37 by ADMIN

ADMIN

PdfProcessing: Implement Clone for elements in RadFixedDocument

Created by: Boby

Comments: 1

Category: PdfProcessing

Type: Feature Request

PdfProcessing: Implement Clone for elements in RadFixedDocument

The method should create deep copy of  the current page.

Unplanned

Last Updated: 02 Jul 2026 14:22 by Jérémie

PdfProcessing: InvalidOperationException is thrown when exporting a PDF document with a set compliance that processes Type3 font glyphs

Created by: Jérémie

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: InvalidOperationException is thrown when exporting a PDF document with a set compliance that processes Type3 font glyphs

InvalidOperationException is thrown when exporting a PDF document with a set compliance that processes Type3 font glyphs.

Workaround: Before export, set compliance to None.

var provider = new PdfFormatProvider();
provider.ExportSettings.ComplianceLevel = PdfComplianceLevel.None;

Completed

Last Updated: 02 Jul 2026 07:33 by ADMIN

Release Scheduled For = 2026.2.624 (2026 Q2)

PdfProcessing: Unable to obtain the value of incrementally updated fields

Created by: Michael

Comments: 2

Category: PdfProcessing

Type: Bug Report

PdfProcessing: Unable to obtain the value of incrementally updated fields

Unable to obtain the value of incrementally updated fields. The original value of the fields is resolved instead.

In Development

Last Updated: 01 Jul 2026 19:57 by ADMIN

PdfProcessing: MethodAccessException is thrown when exporting documents using .NET Standard references in a .NET Framework environment

Created by: Tony

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: MethodAccessException is thrown when exporting documents using .NET Standard references in a .NET Framework environment

MethodAccessException is thrown when exporting documents using .NET Standard references in a .NET Framework environment.

In Development

Last Updated: 01 Jul 2026 07:47 by ADMIN

ADMIN

PdfProcessing: StackOverflowException caused by an infinite parent-child loop in the StructureTree

Created by: Martin

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: StackOverflowException caused by an infinite parent-child loop in the StructureTree

The stack shows 1070 repeated frames of:

StructElementObject.ProcessChildPrimitive(...)
StructElementObject.CopyPropertiesTo(...)

The StructureTree import is traversing a cyclic StructElement graph (or equivalent re-entrant child chain) without a recursion guard.

During this recursion, indirect object resolution repeatedly re-enters the same compressed object:

reference.ObjectNumber = 554
context.CurrentIndirectReference.ObjectNumber = 554
TryGetIndirectObject(554, ...) == false at re-entry

In Development

Last Updated: 30 Jun 2026 14:31 by ADMIN

PdfProcessing: PdfStreamWriter: Duplicated pages when merging documents with identical page content streams but different per-page Resources

Created by: Ian

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: PdfStreamWriter: Duplicated pages when merging documents with identical page content streams but different per-page Resources

PdfStreamWriter: Duplicated pages when merging documents with identical page content streams but different per-page Resources.

Workaround: Use the RadFixedDocument.Merge() method instead of the PdfStreamWriter.

In Development

Last Updated: 30 Jun 2026 14:28 by ADMIN

PdfProcessing: NullReferenceException is thrown when importing a document with missing Owner (O) in tagged structure attributes

Created by: Jan

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: NullReferenceException is thrown when importing a document with missing Owner (O) in tagged structure attributes

NullReferenceException is thrown when importing a document with missing Owner (O) in tagged structure attributes.

Unplanned

Last Updated: 29 Jun 2026 12:11 by Paulo

PdfProcessing: Signature validation reports file as "modified" while Adobe Acrobat reports "not modified"

Created by: Paulo

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: Signature validation reports file as "modified" while Adobe Acrobat reports "not modified"

PdfProcessing: Signature validation reports file as "modified" while Adobe Acrobat reports "not modified".

Completed

Last Updated: 24 Jun 2026 10:48 by ADMIN

Release 2026.2.624 (2026 Q2)

PdfProcessing: Optimize the exporting of fonts

Created by: Nitya

Comments: 0

Category: PdfProcessing

Type: Feature Request

PdfProcessing: Optimize the exporting of fonts

When importing and merging documents the fonts are extracted directly from the files and can duplicate if the files contain the same fonts.

Completed

Last Updated: 24 Jun 2026 10:31 by ADMIN

Release Scheduled For = 2026.2.624 (2026 Q2)

PdfProcessing: SkiaImageFormatProvider: NullReferenceException is thrown when rendering a glyph ("H22073") with not found GlyphData

Created by: Dmitri

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: SkiaImageFormatProvider: NullReferenceException is thrown when rendering a glyph ("H22073") with not found GlyphData

Iterate the pages of a PDF document and export each page to an image

Completed

Last Updated: 24 Jun 2026 10:31 by ADMIN

Release Scheduled For = 2026.2.624 (2026 Q2)

ADMIN

PdfProcessing: The casing of the font name should not be respected when comparing font names to find from collection

Created by: Tanya

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: The casing of the font name should not be respected when comparing font names to find from collection

This is causing issues when exporting the document to PDF from WordsProcessing - the pdf library tries to create the font, but cannot find it due to a different casing. When importing HTML document, the font-family property is read with small letters. Later, when converting the string containing the value, it is changed to title case. 

This issue will be reproducible with each font containing a name with a letter with casing different than the one of the other letters (exc. first capital letter), for example: Microsoft JhengHei

Completed

Last Updated: 24 Jun 2026 10:31 by ADMIN

Release Scheduled For = 2026.2.624 (2026 Q2)

PdfProcessing: Some signatures are displayed as invalid or unknown.

Created by: Jon

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: Some signatures are displayed as invalid or unknown.

Enabling FIPS causes all signatures to be displayed as invalid or unknown. In addition, some signatures are displayed as unknown but Adobe verifies them.

Completed

Last Updated: 24 Jun 2026 10:31 by ADMIN

Release Scheduled For = 2026.2.624 (2026 Q2)

ADMIN

PdfProcessing: NetStandard: Mispositioned glyphs after import/export with non-embedded fonts

Created by: Martin

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: NetStandard: Mispositioned glyphs after import/export with non-embedded fonts

When processing PDF documents on the NetStandard target, glyph positions become incorrect after performing an import-export operation on documents that use non-embedded fonts.

Completed

Last Updated: 24 Jun 2026 10:31 by ADMIN

Release Scheduled For = 2026.2.624 (2026 Q2)

PdfProcessing: Newly created SignatureDataProperties object misses Contents initialization

Created by: John

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: Newly created SignatureDataProperties object misses Contents initialization

Sign a random pdf document with the following code. If UseSignatureProperties=1, the produced PDF document will be corrupted and Adobe displays an error message when opening the file:

        Dim signProp As New SignatureDataProperties
        signProp.ContactInfo = strContactInfo
        signProp.Name = strSignersName
        signProp.Reason = strReason
        signProp.Location = strLocation
        signProp.TimeOfSigning = DateTime.Now

        Dim signatureName As String = "EsignSignature"

        Dim signatureField1 As SignatureField = New SignatureField(signatureName)
        UseSignatureProperties = 1

        If UseSignatureProperties = 1 Then
            Dim sign1 = New Signature(certificate)
            signatureField1.Signature = sign1
            signatureField1.Signature.Properties = signProp 'THIS WOULD FAIL
        Else
            signatureField1.Signature = New Signature(certificate)
            signatureField1.Signature.Properties.ContactInfo = strContactInfo
            signatureField1.Signature.Properties.Location = strLocation
            signatureField1.Signature.Properties.Name = strSignersName
            signatureField1.Signature.Properties.Reason = strReason
            signatureField1.Signature.Properties.TimeOfSigning = DateTime.Now  'THIS WORKS
        End If

Completed

Last Updated: 24 Jun 2026 10:31 by ADMIN

Release Scheduled For = 2026.2.624 (2026 Q2)

PdfProcessing: System.OverflowException: 'Arithmetic operation resulted in an overflow.' is thrown when importing a document and endstream is not on a new row

Created by: Rami

Comments: 0

Category: PdfProcessing

Type: Bug Report

PdfProcessing: System.OverflowException: 'Arithmetic operation resulted in an overflow.' is thrown when importing a document and endstream is not on a new row

According to the PDF specification: "It is recommended that there be an end-of-line marker after the data and before endstream;"

The full stack trace:

   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Import.Parser.Reader.Read(Int32 count)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfStreamBase.CalculateStreamLengthAndReadData()
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfStream.ReadRawPdfDataOverride()
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfStreamBase.ReadRawPdfData()
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Filters.FiltersManager.Decode(PostScriptReader reader, IPdfImportContext context, PdfDictionary dictionary, PdfStreamBase stream, PdfArray filters)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfStreamBase.DecodePdfData()
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfStreamBase.ReadDecodedPdfData()
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.Functions.FunctionObject.InterpretData(PostScriptReader reader, IPdfImportContext context, PdfStreamBase stream)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.Common.PdfStreamObjectBase.LoadOverride(PostScriptReader reader, IPdfImportContext context, IPdfPrimitive primitive)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.Common.PdfObject.Load(PostScriptReader reader, IPdfImportContext context, IPdfPrimitive primitive)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Converters.Converter.ConvertFromStream(Type type, PostScriptReader reader, IPdfImportContext context, PdfStream stream)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Converters.Converter.Convert(Type type, PostScriptReader reader, IPdfImportContext context, IPdfPrimitive value)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Converters.Converter.ConvertFromIndirectReference(Type type, PostScriptReader reader, IPdfImportContext context, IndirectReference reference)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Converters.Converter.Convert(Type type, PostScriptReader reader, IPdfImportContext context, IPdfPrimitive value)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfCollectionBase`1.ConvertElementToType[T](PostScriptReader reader, IPdfImportContext context, IPdfPrimitive element)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfCollectionBase`1.TryGetElement[T](PostScriptReader reader, IPdfImportContext context, TIndex index, T& element)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.Functions.StitchingFunctionObject.ToFunction(PostScriptReader reader, IPdfImportContext context)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.Patterns.GradientShadingObject`1.InitializeGradientStops(PostScriptReader reader, IPdfContentImportContext context, Gradient gradient, Matrix matrix, Double distance)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.Patterns.GradientShadingObject`1.ToColorOverride(PostScriptReader reader, IPdfContentImportContext context, Matrix matrix)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.Patterns.ShadingObject.ToColor(PostScriptReader reader, IPdfContentImportContext context, Matrix matrix)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Operators.Color.SetShadingPatternColor.Execute(IContentStreamInterpreter interpreter, IPdfContentImportContext context)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Import.ContentStreamInterpreter.ExecuteOperatorOverride(ContentStreamOperator oper)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Import.InterpreterBase`1.<>c__DisplayClass8_0.<Execute>b__0()
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.ExceptionHandling.ExecutionHandler.TryHandleExecution[E](Action operation, Action`1 onException)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Import.InterpreterBase`1.Execute()
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.DocumentStructure.ContentStream.ParseContentData(Byte[] data, IRadFixedDocumentImportContext context, IResourceHolder resourceHolder, IContentRootElement contentRoot, ContentStreamKeywordCollection keywordCollection)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.DocumentStructure.ContentStream.ParseContentData(Byte[] data, IRadFixedDocumentImportContext context, IResourceHolder resourceHolder, IContentRootElement contentRoot)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.DocumentStructure.ContentStream.CopyPropertiesTo(IRadFixedDocumentImportContext context, IResourceHolder resourceHolder, IContentRootElement contentRoot)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.DocumentStructure.Page.CopyPageContentTo(IRadFixedDocumentImportContext context, RadFixedPage fixedPage)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.DocumentStructure.DocumentCatalog.<>c__DisplayClass59_1.<CopyAllPageProperties>b__1()
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.ExceptionHandling.ExecutionHandler.TryHandleExecution[E](Action operation)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.DocumentStructure.DocumentCatalog.CopyAllPageProperties(PostScriptReader reader, IRadFixedDocumentImportContext context, List`1 contextPages, IList`1 pages)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.DocumentStructure.DocumentCatalog.CopyPagePropertiesTo(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__DisplayClass18_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)
   at Telerik.Windows.Documents.Common.FormatProviders.FormatProviderBase`1.Import(Stream input)
   at PdfOverflow.Program.Main(String[] args) in C:\Users\dyordano\OneDrive - Progress Software Corporation\MyProjects\1633033_pdfoverflow\PdfOverflow\PdfOverflow\Program.cs:line 15