Software developers are often asked to find a way to convert Microsoft Excel into PDF as PDF files are widely used for exchanging documents between organizations, government sectors and individuals. This solution demonstrates a way of converting Excel  to PDF for WPF developers and maintains high visual fidelity in the conversion.

Spire.XLS for WPF is a WPF Excel component which enables your WPF applications to fast generate, read, write and modify Excel document without Microsoft Office Excel Automation. It also fully supports converting files from Excel to PDF, Excel to HTML, Excel to CSV, Excel to Text, Excel to Image and Excel to XML. All the conversion is independent of any other software.

Any kind of trial and evaluation is always welcomed. Please feel free to download Spire.XLS for WPF to have a trial and convert your Excel to PDF for personal use. Below is a screenshot of the source Excel file we load in this demo. At the end, a screenshot of PDF will be demonstrated for comparison with the source Excel file.

Now this is the key procedure for converting Excel to PDF in WPF.

Step 1: Load Excel file or Create Excel from scratch.

In this step, instantiate an object of the Workbook class by calling its empty constructor and then you may open/load an existing template file or skip this step if you are creating the workbook from scratch.

// load Excel file
Workbook workbook = new Workbook();
workbook.LoadFromFile("D:\\test.xlsx");                  

[VB.NET]

' load Excel file
Dim workbook As New Workbook()
workbook.LoadFromFile("D:\test.xlsx")

Step 2: Set PDF template.

In this step, we will set PDF template which will be used below.

// Set PDF template
PdfDocument pdfDocument = new PdfDocument();
pdfDocument.PageSettings.Orientation = PdfPageOrientation.Landscape;
pdfDocument.PageSettings.Width = 970;
pdfDocument.PageSettings.Height = 850;                  

' Set PDF template
Dim pdfDocument As New PdfDocument()
pdfDocument.PageSettings.Orientation = PdfPageOrientation.Landscape
pdfDocument.PageSettings.Width = 970
pdfDocument.PageSettings.Height = 850

Step 3: Convert Excel to PDF in WPF.

Now we will use the template which we have already set above to convert Excel to PDF in WPF.

//Convert Excel to PDF using the template above
PdfConverter pdfConverter = new PdfConverter(workbook);
PdfConverterSettings settings = new PdfConverterSettings();
settings.TemplateDocument = pdfDocument;
pdfDocument = pdfConverter.Convert(settings);            

'Convert Excel to PDF using the template above
Dim pdfConverter As New PdfConverter(workbook)
Dim settings As New PdfConverterSettings()
settings.TemplateDocument = pdfDocument
pdfDocument = pdfConverter.Convert(settings)

Step 4: Save and preview PDF.

Please use the codes below to save and preview PDF.

// Save and preview PDF
pdfDocument.SaveToFile("sample.pdf");
System.Diagnostics.Process.Start("sample.pdf");        

' Save and preview PDF
pdfDocument.SaveToFile("sample.pdf")
System.Diagnostics.Process.Start("sample.pdf")

The picture below is a screenshot of the PDF, Please see: