When signing a PDF document with an image using the PdfStreamSigner, the signature is broken. This is the used approach for signing the document: https://www.telerik.com/document-processing-libraries/documentation/libraries/radpdfprocessing/features/digital-signature/pdfstreamsigner
However, instead of using the DrawText method, the DrawImage method is used.
Charts with Series-based legends are exported as Categories during import/export.
When importing HTML content to a RadFlowDocument and exporting it to PDF format, the following error message occurs:
System.ArgumentException: 'The document element is associated with another parent. (Parameter 'item')'
at Telerik.Windows.Documents.Fixed.Model.Collections.DocumentElementCollection`2.VerifyDocumentElementOnInsert(T item)at Telerik.Windows.Documents.Core.Data.DocumentElementCollectionBase`2.Add(T item)
at Telerik.Windows.Documents.Fixed.Model.Editing.FixedContentEditor.Append(PositionContentElement element)
at Telerik.Windows.Documents.Fixed.Model.Editing.FixedContentEditor.Draw(PositionContentElement element)
at Telerik.Windows.Documents.Fixed.Model.Editing.Layout.ContentElementLayoutElementBase`1.Draw(DrawLayoutElementContext context)
at Telerik.Windows.Documents.Fixed.Model.Editing.Block.Draw(IEnumerable`1 lineElements, DrawLayoutElementContext context)
at Telerik.Windows.Documents.Fixed.Model.Editing.Block.DrawInternal(FixedContentEditor editor, Rect boundingRect)
at Telerik.Windows.Documents.Fixed.Model.Editing.Block.Draw(FixedContentEditor editor, Rect boundingRect)
at Telerik.Windows.Documents.Fixed.Model.Editing.Tables.TableCell.Draw(FixedContentEditor editor)
at Telerik.Windows.Documents.Fixed.Model.Editing.Tables.Table.DrawCellContent(FixedContentEditor editor, TableCell cell)
at Telerik.Windows.Documents.Fixed.Model.Editing.Tables.Table.DrawTableCells(FixedContentEditor editor, Int32 rowIndex, TableCellCollection cells)
at Telerik.Windows.Documents.Fixed.Model.Editing.Tables.Table.DrawTableRows(FixedContentEditor editor)
at Telerik.Windows.Documents.Fixed.Model.Editing.Tables.Table.DrawInternal(FixedContentEditor editor, Rect boundingRect)
at Telerik.Windows.Documents.Fixed.Model.Editing.Tables.Table.Draw(FixedContentEditor editor, Rect boundingRect)
at Telerik.Windows.Documents.Fixed.Model.Editing.Tables.TableCell.Draw(FixedContentEditor editor)
at Telerik.Windows.Documents.Fixed.Model.Editing.Tables.Table.DrawCellContent(FixedContentEditor editor, TableCell cell)
at Telerik.Windows.Documents.Fixed.Model.Editing.Tables.Table.DrawTableCells(FixedContentEditor editor, Int32 rowIndex, TableCellCollection cells)
at Telerik.Windows.Documents.Fixed.Model.Editing.Tables.Table.DrawTableRows(FixedContentEditor editor)
at Telerik.Windows.Documents.Fixed.Model.Editing.Tables.Table.DrawInternal(FixedContentEditor editor, Rect boundingRect)
at Telerik.Windows.Documents.Fixed.Model.Editing.Tables.Table.Telerik.Windows.Documents.Fixed.Model.Editing.Flow.IDrawArrangedElement.DrawArrangedElement(FixedContentEditor editor, Rect boundingRect)
at Telerik.Windows.Documents.Fixed.Model.Editing.Flow.SectionInfo.DrawArrangedElement(IBlockElement blockElement, Double horizontalOffset, Double verticalOffset)
at Telerik.Windows.Documents.Fixed.Model.Editing.Utils.SectionInfoExtensions.DrawArrangedElements(SectionInfo section, IList`1 elements)
at Telerik.Windows.Documents.Fixed.Model.Editing.RadFixedDocumentEditor.Draw()
at Telerik.Windows.Documents.Fixed.Model.Editing.RadFixedDocumentEditor.StartNewPage(SectionProperties sectionProperties)
at Telerik.Windows.Documents.Fixed.Model.Editing.RadFixedDocumentEditor.StartNewPage()
at Telerik.Windows.Documents.Fixed.Model.Editing.RadFixedDocumentEditor.AddBlock(IBlockElement blockElement, CancellationToken cancellationToken)
at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.Export.PdfExporter.ExportSection(Section section, RadFixedDocumentEditor editor)
at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.Export.PdfExporter.ExportDocument(RadFlowDocument document, RadFixedDocumentEditor editor)
at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.Export.PdfExporter.ExportInternal()
at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.Export.PdfExporter.Export()
at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider.ExportToFixedDocument(RadFlowDocument document, CancellationToken cancellationToken)
at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider.ExportOverride(RadFlowDocument document, Stream output, CancellationToken cancellationToken)
at Telerik.Windows.Documents.Common.FormatProviders.FormatProviderBase`1.Export(T document, Stream output, Nullable`1 timeout)
at _1713205HtmlToPdf.Program.Main(String[] args) in C:\Users\dyordano\OneDrive - Progress Software Corporation\MyProjects\1713205HtmlToPdf\Program.cs:line 46
The current formula:
<c r="A1" s="1">
<f>[1]BILANS_JI!$C$2</f>
<v>22611518.026189998</v>
</c>
• Simple direct reference to a single external cell [1]BILANS_JI!$C$2
• No function, just a linked cell
The expected value to be returned is 22611518.
The issue is reproducible with PDF form fields and setting Polish characters to the text fields: e.g. "ęóąśłżźćń"
Edit mode in RadPdfViewer:
Exit edit mode:
Here is a sample code snippet for reproducing the case without UI:
PdfFormatProvider provider = new PdfFormatProvider();
RadFixedDocument document = provider.Import(File.ReadAllBytes("file.pdf"), TimeSpan.FromSeconds(10));
foreach (RadFixedPage page in document.Pages)
{
foreach (Annotation annotation in page.Annotations)
{
if (annotation.Type == AnnotationType.Widget)
{
Widget widget = (Widget)annotation;
var field = widget.Field as TextBoxField;
if (field != null)
{
field.Value = "ęóąśłżźćń.";
}
}
}
}
string outputFilePath = "result.pdf";
File.Delete(outputFilePath);
File.WriteAllBytes(outputFilePath, provider.Export(document, TimeSpan.FromSeconds(10)));
Process.Start(new ProcessStartInfo() { FileName = outputFilePath, UseShellExecute = true });
Getting an exception message when trying to view a document as a PDF using the PdfFormatProvider which started happening only after upgrading Telerik to the latest version, 7.1.0 in Telerik UI for Blazor.
Exception Message:
width should be greater or equal than 0. (Parameter 'width')
I have copied the stack trace and source of the exception below:
Source: Telerik.Documents.Fixed
Stack Trace: at Telerik.Windows.Documents.Fixed.Model.Editing.Layout.ContentElementLayoutElementBase`1.DrawHighlights(DrawLayoutElementContext context)
at Telerik.Windows.Documents.Fixed.Model.Editing.Layout.ContentElementLayoutElementBase`1.Draw(DrawLayoutElementContext context)
at Telerik.Windows.Documents.Fixed.Model.Editing.Block.Draw(IEnumerable`1 lineElements, DrawLayoutElementContext context)
at Telerik.Windows.Documents.Fixed.Model.Editing.Block.DrawInternal(FixedContentEditor editor, Rect boundingRect)
at Telerik.Windows.Documents.Fixed.Model.Editing.Block.Telerik.Windows.Documents.Fixed.Model.Editing.Flow.IDrawArrangedElement.DrawArrangedElement(FixedContentEditor editor, Rect boundingRect)
at Telerik.Windows.Documents.Fixed.Model.Editing.Flow.SectionInfo.DrawArrangedElement(IBlockElement blockElement, Double horizontalOffset, Double verticalOffset)
at Telerik.Windows.Documents.Fixed.Model.Editing.Utils.SectionInfoExtensions.DrawArrangedElements(SectionInfo section, IList`1 elements)
at Telerik.Windows.Documents.Fixed.Model.Editing.RadFixedDocumentEditor.Draw()
at Telerik.Windows.Documents.Fixed.Model.Editing.RadFixedDocumentEditor.StartNewPage(SectionProperties sectionProperties)
at Telerik.Windows.Documents.Fixed.Model.Editing.RadFixedDocumentEditor.StartNewPage()
at Telerik.Windows.Documents.Fixed.Model.Editing.RadFixedDocumentEditor.AddBlock(IBlockElement blockElement, CancellationToken cancellationToken)
at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.Export.PdfExporter.ExportSection(Section section, RadFixedDocumentEditor editor)
at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.Export.PdfExporter.ExportDocument(RadFlowDocument document, RadFixedDocumentEditor editor)
at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.Export.PdfExporter.ExportInternal()
at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.Export.PdfExporter.Export()
at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider.ExportToFixedDocument(RadFlowDocument document, CancellationToken cancellationToken)
at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider.ExportOverride(RadFlowDocument document, Stream output, CancellationToken cancellationToken)
at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider.ExportOverride(RadFlowDocument document, Stream output)
at Telerik.Windows.Documents.Common.FormatProviders.FormatProviderBase`1.Export(T document, Stream output)
at Telerik.Windows.Documents.Common.FormatProviders.BinaryFormatProviderBase`1.Export(T document)
This is the code for reproducing the incorrect PDF document. If the step with changing the font is commented, the document is exported properly:
//Step 1: Create an instance of XlsxFormatProvider to import the Excel file
XlsxFormatProvider xlsxFormatProvider = new XlsxFormatProvider();
Telerik.Windows.Documents.Spreadsheet.FormatProviders.Pdf.PdfFormatProvider pdfFormatProvider = new Telerik.Windows.Documents.Spreadsheet.FormatProviders.Pdf.PdfFormatProvider();
Workbook workbook;
using (FileStream input = new FileStream("Input.xlsx", FileMode.Open))
{
workbook = xlsxFormatProvider.Import(input, TimeSpan.FromSeconds(10));
}
//Step 2: Export the workbook to PDF RadFixedDocument to modify fonts
Telerik.Windows.Documents.Spreadsheet.FormatProviders.Pdf.PdfFormatProvider spread_pdf_provider = new Telerik.Windows.Documents.Spreadsheet.FormatProviders.Pdf.PdfFormatProvider();
RadFixedDocument fixedDocument = spread_pdf_provider.ExportToFixedDocument(workbook, TimeSpan.FromSeconds(10));
foreach (var page in fixedDocument.Pages)
{
foreach (var content in page.Content)
{
if (content is TextFragment text)
{
// Replace the font with Helvetica or HelveticaBold based on the original font style
text.Font = text.Font.Name.ToLower().Contains("bold")
? FontsRepository.HelveticaBold
: FontsRepository.Helvetica;
}
}
}
//Step 3: Save the modified RadFixedDocument back to PDF
string outputFileName = "ExportedWorkbook.pdf";
Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.PdfFormatProvider fixed_pdf_provider = new Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.PdfFormatProvider();
using (FileStream output = new FileStream(outputFileName, FileMode.Create))
{
fixed_pdf_provider.ExportSettings.DocumentUnhandledException += ExportSettings_DocumentUnhandledException;
fixed_pdf_provider.ExportSettings.FontEmbeddingType = Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Export.FontEmbeddingType.Subset;
fixed_pdf_provider.Export(fixedDocument, output, TimeSpan.FromSeconds(10));
}
Process.Start(new ProcessStartInfo() { FileName = outputFileName, UseShellExecute = true });
