addressed the feedback

Author: dessyordanova

knowledge-base/export-charts-to-pdf-radspreadprocessing.md

@@ -4,7 +4,7 @@ description: Learn how to export charts from Excel files to PDF format using Rad
 type: how-to
 page_title: How to Export Charts from Excel to PDF with RadSpreadProcessing and WinForms RadChartView
 slug: export-charts-to-pdf-radspreadprocessing
-tags: spreadprocessing, document, processing, export, chart, pdf, excel, image, winforms
+tags: spreadprocessing, document, processing, export, chart, pdf, excel, image, winforms, sheet, worksheet, xslx
 res_type: kb
 ticketid: 1659898
 ---
@@ -17,7 +17,7 @@ ticketid: 1659898
 
 ## Description
 
-When converting an Excel file with charts to PDF, the charts may not display as expected in the PDF document. This may occur when exporting charts to PDF in .NET Framework applications. This KB article shows a sample approach how to utilize the chart engine that [WinForms RadChartView]({%slug winforms/chartview/overview%}) control offers and ensure charts are properly exported from Excel files to PDF.
+When converting an Excel file with charts to PDF format using the Telerik Document Processing libraries, the charts may not display as expected in the PDF document. This may occur when exporting charts to PDF in .NET Framework applications. This KB article shows a sample approach how to utilize the chart engine that [WinForms RadChartView]({%slug winforms/chartview/overview%}) control offers and ensure charts are properly exported from Excel files to PDF.
 
 ## Solution
 
@@ -32,13 +32,22 @@ To export charts from Excel files to PDF format using RadSpreadProcessing, follo
 Below is a sample implementation using the WinForms RadChartView for chart visualization:
 
 ```csharp
+using System.IO;
+using Telerik.Windows.Documents.Fixed.Model.Editing;
+using Telerik.Windows.Documents.Spreadsheet.FormatProviders.Pdf.Export;
+using Telerik.Windows.Documents.Spreadsheet.Model.Shapes;
+
 public class WinFormsPdfChartImageRenderer : IPdfChartRenderer
 {
+    public WinFormsPdfChartImageRenderer()
+    {
+    }
+
     public void RenderChart(FixedContentEditor editor, FloatingChartShape chartShape)
     {
         string filePath = @"exportedChart.png";
 
-        System.Drawing.Size size = new System.Drawing.Size((int)(chartShape.Width ),(int)(chartShape.Height));
+        System.Drawing.Size size = new System.Drawing.Size((int)(chartShape.Width), (int)(chartShape.Height + 10));
         System.Drawing.Image chartImage = Telerik.WinForms.Controls.Spreadsheet.Layers.ChartModelToImageConverter.GetImageFromFloatingChartShape(chartShape, size);
 
         chartImage.Save(filePath);
@@ -49,11 +58,53 @@ public class WinFormsPdfChartImageRenderer : IPdfChartRenderer
         File.Delete(filePath);
     }
 }
+```
+
+Using the custom chart renderer:
 
-PdfFormatProvider pdfFormatProvider = new PdfFormatProvider();
-pdfFormatProvider.ExportSettings.ChartRenderer = new WinFormsPdfChartImageRenderer();
+```csharp
+            Workbook workbook;
+            IWorkbookFormatProvider xlsxFormatProvider = new XlsxFormatProvider();
+
+            using (Stream input = new FileStream("spreadsheetWithChart.xlsx", FileMode.Open))
+            {
+                workbook = xlsxFormatProvider.Import(input);
+            }
+            
+            WorksheetPageSetup pageSetup = workbook.ActiveWorksheet.WorksheetPageSetup;
+            pageSetup.PaperType = PaperTypes.A4;
+
+            PdfFormatProvider pdfFormatProvider = new PdfFormatProvider();
+            pdfFormatProvider.ExportSettings.ChartRenderer = new WinFormsPdfChartImageRenderer(); // new WpfPdfChartImageRenderer();
+
+            string outputFilePath = "spreadsheetWithChart.pdf";
+            File.Delete(outputFilePath);
+            using (Stream output = File.OpenWrite(outputFilePath))
+            {
+                pdfFormatProvider.Export(workbook, output);
+            }
+
+            var psi = new ProcessStartInfo()
+            {
+                FileName = outputFilePath,
+                UseShellExecute = true
+            };
+            Process.Start(psi);    
 ```
 
+### Required Assemblies
+
+* Telerik.WinControls.RadSpreadsheet
+* Telerik.WinControls
+* Telerik.WinControls.ChartView
+* Telerik.WinControls.UI
+* TelerikCommon
+* Telerik.Windows.Documents.Core
+* Telerik.Windows.Documents.Fixed
+* Telerik.Windows.Documents.Spreadsheet
+* Telerik.Windows.Documents.Spreadsheet.FormatProviders.OpenXml
+* Telerik.Windows.Documents.Spreadsheet.FormatProviders.Pdf
+
 ## See Also
 
 - [RadSpreadProcessing Overview]({%slug radspreadprocessing-overview%})