Aspose.Cells supports converting XLS files (that contain images and charts) to PDF documents. However, since we use Aspose.Pdf xml file as a medium, to preserve those image files, please save your Aspose.Pdf xml file on disk, not in a stream.

 

[C#]

// Saving an XLS file in Aspose.Pdf xml format
Workbook wb = new Workbook();
wb.Open("C:\\book1.xls);
wb.Save("C:\\xls2pdf.xml", FileFormatType.AsposePdf);

// Converting XLS file to PDF through Aspose.Pdf using Aspose.Pdf xml file as a medium
Aspose.Pdf.Pdf pdf = new Aspose.Pdf.Pdf();
pdf.BindXML("c:\\xls2pdf.xml", null);
pdf.Save("C:\\xls2pdf.pdf");

[VB]

' Saving an XLS file in Aspose.Pdf xml format
Dim wb as Workbook = new Workbook()
wb.Open("C:\book1.xls)
wb.Save("C:\xls2pdf.xml", FileFormatType.AsposePdf)

' Converting XLS file to PDF through Aspose.Pdf using Aspose.Pdf xml file as a medium
Dim pdf as Aspose.Pdf.Pdf = new Aspose.Pdf.Pdf()
pdf.BindXML("c:\\xls2pdf.xml", null)
pdf.Save("C:\xls2pdf.pdf")