Chart to PDF

Rendering Chart to PDF

In order to render the chart to PDF format, the Aspose.Cells APIs have exposed the Chart.ToPdf method with the ability to store the resultant PDF on disc path or Stream.

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

// Instantiating a Workbook object
Workbook workbook = new Workbook();
// Adding a new worksheet to the Workbook
int sheetIndex = workbook.Worksheets.Add();
// Obtaining the reference of the newly added worksheet by passing its index to WorksheetCollection
Worksheet worksheet = workbook.Worksheets[sheetIndex];

// Adding sample values to cells
worksheet.Cells["A1"].PutValue(50);
worksheet.Cells["A2"].PutValue(100);
worksheet.Cells["A3"].PutValue(150);
worksheet.Cells["B1"].PutValue(4);
worksheet.Cells["B2"].PutValue(20);
worksheet.Cells["B3"].PutValue(50);

// Adding a chart to the worksheet
int chartIndex = worksheet.Charts.Add(Aspose.Cells.Charts.ChartType.Column, 5, 0, 15, 5);
// Accessing the instance of the newly added chart
Aspose.Cells.Charts.Chart chart = worksheet.Charts[chartIndex];
// Adding Series Collection (chart data source) to the chart ranging from "A1" cell to "B3"
chart.NSeries.Add("A1:B3", true);
            
// Converting chart to PDF
chart.ToPdf(dataDir + "chartPDF_out.pdf");

Create Chart PDF with Desired Page Size

You can create chart Pdf with your desired page size using Aspose.Cells and specify how you want to align the chart inside the page as top, bottom, center, left, right etc. Besides, the output chart can be created in stream or on disk.Please see the following sample code that loads the sample Excel file, accesses the first chart inside the worksheet and then converts it into output Pdf with desired page size. The following screenshot shows that the page size in the output Pdf is 7x7 as specified inside the code and chart is center aligned both horizontally as well as vertically. 

Sample Code

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET

//Load sample Excel file containing the chart.
Workbook wb = new Workbook(sourceDir + "sampleCreateChartPDFWithDesiredPageSize.xlsx");

//Access first worksheet.
Worksheet ws = wb.Worksheets[0];

//Access first chart inside the worksheet.
Chart ch = ws.Charts[0];

//Create chart pdf with desired page size.
ch.ToPdf(outputDir + "outputCreateChartPDFWithDesiredPageSize.pdf", 7, 7, PageLayoutAlignmentType.Center, PageLayoutAlignmentType.Center);