Recently Updated
Unplanned
Last Updated:
19 May 2026 10:58
by Maks
Created by:
Maks
Comments:
0
Category:
WordsProcessing
Type:
Bug Report
StackOverflowException is thrown when exporting a document with circular style links when resolving unpopulated style properties.
In Development
Last Updated:
19 May 2026 10:04
by ADMIN
ADMIN
Created by:
Martin
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
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.
Root Cause:
PdfExportContext.CreateDocumentId() calls System.Security.Cryptography.MD5.Create(). MD5 is not available in the .NET WASM runtime by default and throws CryptographicException.
In Development
Last Updated:
19 May 2026 06:50
by ADMIN
Created by:
Petter
Comments:
0
Category:
WordsProcessing
Type:
Bug Report
HtmlFormatProvider: Styles are not correctly preserved when a <b> tag is applied to the same styled element.
Workaround: Apply bold through CSS instead of using <b>.
Unplanned
Last Updated:
18 May 2026 17:01
by ADMIN
ADMIN
Created by:
Martin
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
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.
In Development
Last Updated:
18 May 2026 12:06
by ADMIN
Created by:
Tim
Comments:
0
Category:
SpreadProcessing
Type:
Bug Report
Code to reproduce:
Workbook wb = new Workbook();
Worksheet worksheet = wb.Worksheets.Add();
PatternFill fill = new PatternFill(PatternType.DiagonalStripe, Colors.Red, Colors.Transparent);
worksheet.Cells[0, 0].SetFill(fill);
string outputFilePath = "Sample.pdf";
File.Delete(outputFilePath);
Telerik.Windows.Documents.Spreadsheet.FormatProviders.Pdf.PdfFormatProvider pdfFormatProvider =
new Telerik.Windows.Documents.Spreadsheet.FormatProviders.Pdf.PdfFormatProvider();
//export to file
using (Stream output = File.OpenWrite(outputFilePath))
{
pdfFormatProvider.Export(wb, output, TimeSpan.FromSeconds(10));
}
Process.Start(new ProcessStartInfo() { FileName = outputFilePath, UseShellExecute = true });
In Development
Last Updated:
17 May 2026 15:37
by ADMIN
Created by:
Eric Moreau
Comments:
0
Category:
SpreadProcessing
Type:
Bug Report
An error occurs while importing an XLSX document with charts. Here is the stack trace:
at Telerik.Windows.Documents.Spreadsheet.FormatProviders.OpenXml.Xlsx.Contexts.XlsxWorkbookImportContext.PairSeriesGroupsWithAxes() at Telerik.Windows.Documents.FormatProviders.OpenXml.Model.Elements.Chart.PlotAreaElement.CopyPropertiesTo(IOpenXmlImportContext context, DocumentChart chart) at Telerik.Windows.Documents.FormatProviders.OpenXml.Model.Elements.Chart.ChartElement.CopyPropertiesTo(IOpenXmlImportContext context, DocumentChart chart) at Telerik.Windows.Documents.FormatProviders.OpenXml.Model.Elements.Chart.ChartSpaceElement.OnAfterRead(IOpenXmlImportContext context) at Telerik.Windows.Documents.FormatProviders.OpenXml.Model.Elements.OpenXmlElementBase.Read(IOpenXmlReader reader, IOpenXmlImportContext context) at Telerik.Windows.Documents.FormatProviders.OpenXml.Model.Parts.ChartPart.Import(IOpenXmlReader reader, IOpenXmlImportContext context) at Telerik.Windows.Documents.FormatProviders.OpenXml.Model.Parts.OpenXmlPartBase.Import(Stream stream, IOpenXmlImportContext context) at Telerik.Windows.Documents.FormatProviders.OpenXml.OpenXmlImporter`1.ImportPartFromArchive(ZipArchiveEntry zipEntry, PartBase part, IOpenXmlImportContext context) at Telerik.Windows.Documents.FormatProviders.OpenXml.OpenXmlImporter`1.Import(Stream input, IOpenXmlImportContext context) at Telerik.Windows.Documents.Spreadsheet.FormatProviders.OpenXml.Xlsx.XlsxFormatProvider.ImportOverride(Stream input, CancellationToken cancellationToken) at Telerik.Windows.Documents.Spreadsheet.FormatProviders.WorkbookFormatProviderBase.Import(Stream input, Nullable`1 timeout)
In Development
Last Updated:
15 May 2026 20:05
by ADMIN
Created by:
Sandy
Comments:
8
Category:
PdfProcessing
Type:
Bug Report
Corrupted document when exporting "Courier New" subset.
Workaround - fully embed the font:
var pdfFormatProvider = new PdfFormatProvider();
pdfFormatProvider.ExportSettings.FontEmbeddingType = FontEmbeddingType.Full;NOTE: There are reports for other fonts' subset, e.g. "ZapfDingbats" font.
In Development
Last Updated:
15 May 2026 13:30
by ADMIN
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.
Completed
Last Updated:
14 May 2026 16:33
by ADMIN
Release 2026.2.514 (2026 Q2)
ADMIN
Created by:
Deyan
Comments:
0
Category:
WordsProcessing
Type:
Bug Report
When a style doesn't have explicitly defined font, the font from the default character properties (\defchp) is used when present. Instead, the font used for the style should be the default font for the document, defined with \deffN tag. The same issue occur when the doesn't contain \defchp at all. In this case, the font for the style is not imported, but instead the defined with \deffN tag should be used. The construction is not common, and MS Word for example doesn't produce such documents.
Completed
Last Updated:
14 May 2026 16:33
by ADMIN
Release 2026.2.514 (2026 Q2)
Created by:
David
Comments:
0
Category:
SpreadProcessing
Type:
Bug Report
Images don't move with cells when a row/column is inserted.
Completed
Last Updated:
14 May 2026 16:33
by ADMIN
Release 2026.2.514 (2026 Q2)
Created by:
Vitalii
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
NullReferenceException is thrown when exporting pages containing images with missing optional ColorSpace.
Completed
Last Updated:
14 May 2026 16:33
by ADMIN
Release 2026.2.514 (2026 Q2)
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.
Completed
Last Updated:
14 May 2026 16:33
by ADMIN
Release 2026.2.514 (2026 Q2)
Created by:
David
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
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:
14 May 2026 16:33
by ADMIN
Release 2026.2.514 (2026 Q2)
Created by:
Simon
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
XMP metadata is unescaped during import/export.
Completed
Last Updated:
14 May 2026 16:33
by ADMIN
Release 2026.2.514 (2026 Q2)
Created by:
Sachin
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
When inserting a specific Jpeg image with an ICC profile there is a problem when opening the file in Adobe:
On the other hand, the PDF is successfully opened by browsers and most PDF viewers.
On the other hand, the PDF is successfully opened by browsers and most PDF viewers.
Completed
Last Updated:
14 May 2026 16:33
by ADMIN
Release 2026.2.514 (2026 Q2)
Created by:
Mattia
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
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)
Created by:
edwin tan
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
Completed
Last Updated:
14 May 2026 16:33
by ADMIN
Release 2026.2.514 (2026 Q2)
Created by:
Dexter
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
When a document containing a SignatureField is exported with the IsEncrypted property set to true, a not set UserPassword is required to open it, which makes it impossible to be opened. An InvalidOperationException is thrown with the message "Password is not correct." when importing with PdfProcessing; Adobe Acrobat also doesn't recognize the password.
Workaround: Exporting with AES256 encryption does not have this problem:
provider.ExportSettings = new PdfExportSettings
{
IsEncrypted = true,
EncryptionType = EncryptionType.AES256
};
Unplanned
Last Updated:
05 May 2026 10:24
by Adrian
Created by:
Adrian
Comments:
0
Category:
PdfProcessing
Type:
Bug Report
Incorrect Chinese characters due to font data loss during import-export.
Unplanned
Last Updated:
24 Apr 2026 06:54
by Joon-Sae
Created by:
Joon-Sae
Comments:
0
Category:
SpreadProcessing
Type:
Bug Report
This is the stack trace:
at Telerik.Windows.Documents.Spreadsheet.Utilities.SpreadsheetHelper.UpdateFloatingImageSize(FloatingShapeBase shape) at Telerik.Windows.Documents.Spreadsheet.Utilities.SpreadsheetHelper.CalculateRotatableShapeBoundingRect(Point position, FloatingTransformableShape shape) at Telerik.Windows.Documents.Spreadsheet.Layout.RadWorksheetLayout.CalculateShapeBoundingRect(FloatingShapeBase shape) at Telerik.Windows.Documents.Spreadsheet.Layout.RadWorksheetLayout.UpdateShapesSizeAndPosition() at Telerik.Windows.Documents.Spreadsheet.Layout.RadWorksheetLayout.Measure(CancellationToken cancellationToken) at Telerik.Windows.Documents.Spreadsheet.Layout.RadWorksheetLayout.Measure(CellIndex frozenCellIndex, CancellationToken cancellationToken) at Telerik.Windows.Documents.Spreadsheet.Model.Workbook.UpdateWorksheetLayout(RadWorksheetLayout worksheetLayout, Worksheet worksheet, Boolean isForPrinting, CancellationToken cancellationToken) at Telerik.Windows.Documents.Spreadsheet.Model.Workbook.GetWorksheetLayout(Worksheet worksheet, Boolean isForPrinting, CancellationToken cancellationToken) at Telerik.Windows.Documents.Spreadsheet.Model.Workbook.GetWorksheetLayout(Worksheet worksheet, Boolean isForPrinting) at Telerik.Windows.Documents.Spreadsheet.FormatProviders.OpenXml.Xlsx.Contexts.XlsxWorksheetImportContext.ImportShapesSizes() at Telerik.Windows.Documents.Spreadsheet.FormatProviders.OpenXml.Xlsx.Contexts.XlsxWorksheetImportContext.EndImport(XlsxWorkbookImportContext workbookContext) at Telerik.Windows.Documents.Spreadsheet.FormatProviders.OpenXml.Xlsx.Contexts.XlsxWorkbookImportContext.EndImport() at Telerik.Windows.Documents.FormatProviders.OpenXml.OpenXmlImporter`1.Import(Stream input, IOpenXmlImportContext context) at Telerik.Windows.Documents.Spreadsheet.FormatProviders.OpenXml.Xlsx.XlsxFormatProvider.ImportOverride(Stream input, CancellationToken cancellationToken) at Telerik.Windows.Documents.Spreadsheet.FormatProviders.WorkbookFormatProviderBase.Import(Stream input, Nullable`1 timeout)