Telerik Document Processing Feedback Portal
Recently Updated
New Items
Most Popular
Status Info
Recently Updated
Request a Feature Report a Bug
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
3
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.
Unplanned
Last Updated: 24 Jun 2026 10:44 by Ian
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
0
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.

Completed
Last Updated: 24 Jun 2026 10:31 by ADMIN
Release Scheduled For = 2026.2.624 (2026 Q2)
PdfProcessing: Unable to obtain the value of incrementally updated fields
Created by: Michael
Comments: 0
Category: PdfProcessing
Type: Bug Report
7
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.
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
1
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
0
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
1
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
0
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
0
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
1
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

 

Completed
Last Updated: 24 Jun 2026 10:31 by ADMIN
Release Scheduled For = 2026.2.624 (2026 Q2)
PdfProcessing: Image duplication after import-export when working with images that have different streams but same metadata
Created by: Tom David
Comments: 0
Category: PdfProcessing
Type: Bug Report
0
PdfProcessing: Image duplication after import-export when working with images that have different streams but same metadata
Image duplication after import-export when working with images that have different streams but same metadata.
Completed
Last Updated: 24 Jun 2026 10:31 by ADMIN
Release Scheduled For = 2026.2.624 (2026 Q2)
PdfProcessing: NotSupportedException is thrown when encoding an image with Indexed color space
Created by: MVDH
Comments: 0
Category: PdfProcessing
Type: Feature Request
0
PdfProcessing: NotSupportedException is thrown when encoding an image with Indexed color space
When encoding an image with Indexed color space an exception is thrown: NotSupportedException: 'Not supported colorspace: Indexed'
Completed
Last Updated: 24 Jun 2026 10:31 by ADMIN
Release Scheduled For = 2026.2.624 (2026 Q2)
PdfProcessing: JavaScripts collection of RadFixedDocument is not cleared by StripJavaScriptActions export setting
Created by: Jeff
Comments: 0
Category: PdfProcessing
Type: Bug Report
2
PdfProcessing: JavaScripts collection of RadFixedDocument is not cleared by StripJavaScriptActions export setting
JavaScripts collection of RadFixedDocument is not cleared by StripJavaScriptActions export setting.
Completed
Last Updated: 24 Jun 2026 10:31 by ADMIN
Release Scheduled For = 2026.2.624 (2026 Q2)
PdfProcessing: NetStandard: KeyNotFoundException when getting glyph for rendering when having Type 1 font
Created by: Ralf
Comments: 0
Category: PdfProcessing
Type: Bug Report
0
PdfProcessing: NetStandard: KeyNotFoundException when getting glyph for rendering when having Type 1 font
Reading Type1 font glyph data when there is a table with differences tries to get the glyph by name but it is not found. 
Completed
Last Updated: 24 Jun 2026 10:31 by ADMIN
Release Scheduled For = 2026.2.624 (2026 Q2)
RadPdfProcessing: Exported protected document containing SignatureField can not be opened
Created by: Telerik Admin
Comments: 0
Category: PdfProcessing
Type: Feature Request
0
RadPdfProcessing: Exported protected document containing SignatureField can not be opened
Exported protected document containing SignatureField can not be opened even if the correct password is used. The same behavior is reproduced with empty document (without pages).
Completed
Last Updated: 24 Jun 2026 10:31 by ADMIN
Release Scheduled For = 2026.2.624 (2026 Q2)
PdfProcessing: Empty glyph outlines collection when registered font with TrueType collection
Created by: Georgi
Comments: 0
Category: PdfProcessing
Type: Bug Report
2
PdfProcessing: Empty glyph outlines collection when registered font with TrueType collection
Embedding a TrueType font collection using the FontsRepository.RegisterFont method leads to glyphs with empty outlines collection. The missing outlines are caused due to an empty glyf and loca tables of the TrueType font file.
Completed
Last Updated: 24 Jun 2026 10:31 by ADMIN
Release Scheduled For = 2026.2.624 (2026 Q2)
PdfProcessing: Fonts are not merged when merging documents
Created by: Rey
Comments: 0
Category: PdfProcessing
Type: Bug Report
5
PdfProcessing: Fonts are not merged when merging documents
When merging documents using the RadFixedDocument`s Merge() method the fonts are not successfully merged which leads to missing characters in the produced document.

Workaround: replace the font with a full font (not a subset) before exporting to a PDF file:
byte[] data = File.ReadAllBytes("verdana.ttf");
FontFamily verdanaRegularFontFamily = new FontFamily("Verdana");
FontsRepository.RegisterFont(verdanaRegularFontFamily, FontStyles.Normal, FontWeights.Normal, data);
FontsRepository.TryCreateFont(verdanaRegularFontFamily, out FontBase verdanaRegularFont);

foreach (RadFixedPage page in mergedDocument.Pages)
{
	foreach (TextFragment textFragment in page.Content.Where(c => c is TextFragment).Cast<TextFragment>())
	{
		textFragment.Font = verdanaRegularFont;
	}
}
Completed
Last Updated: 24 Jun 2026 10:31 by ADMIN
Release Scheduled For = 2026.2.624 (2026 Q2)
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: 2
Category: PdfProcessing
Type: Bug Report
3
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: 24 Jun 2026 10:31 by ADMIN
Release Scheduled For = 2026.2.624 (2026 Q2)
PdfProcessing: Exception when merging file (PdfStreamWriter) that contains color spaces with specific data
Created by: Dimitar
Comments: 0
Category: PdfProcessing
Type: Bug Report
1
PdfProcessing: Exception when merging file (PdfStreamWriter) that contains color spaces with specific data
Exception when merging file that contains notdef characters with PdfStreamWriter
Completed
Last Updated: 24 Jun 2026 10:31 by ADMIN
Release Scheduled For = 2026.2.624 (2026 Q2)
PdfProcessing: Add support for XRechnung compliance
Created by: Nils
Comments: 0
Category: PdfProcessing
Type: Feature Request
1
PdfProcessing: Add support for XRechnung compliance
Add support for XRechnung compliance.
Completed
Last Updated: 24 Jun 2026 10:31 by ADMIN
Release Scheduled For = 2026.2.624 (2026 Q2)
PdfProcessing: Add support for Encryption Algorithm 7
Created by: Giovanni Rojas
Comments: 0
Category: PdfProcessing
Type: Feature Request
1
PdfProcessing: Add support for Encryption Algorithm 7
Add support for Encryption Algorithm 7.
1 2 3 4 5 6
Create an account Log In
View
Type
Status
Category