Hi,
You can use Spire.XLS available on NuGet (https://www.nuget.org/packages/Spire.XLS/) to convert csv to pdf. First reference Spire.xls.dll, second use the following code to achieve csv to pdf conversion.
Workbook workbook = new Workbook();
//Load CSV file
workbook.LoadFromFile(@"D:\michelle\my file\csv2xls.csv", ",", 1, 1);
//Convert the first sheet to PDF
Worksheet sheet = workbook.Worksheets[0];
sheet.SaveToPdf("toPDF.pdf");