public FileStreamResult Get() { string princePath = Path.Combine(_env.ContentRootPath, @"prince\bin\prince.exe"); string fontsCssPath = Path.Combine(_env.ContentRootPath, @"fonts\inter.css"); Prince prn = new Prince(princePath, _princeLogger); prn.StyleSheets.Add(fontsCssPath); Stream pdfOutput = new MemoryStream(10000); prn.ConvertString(ExampleHtml, pdfOutput); pdfOutput.Flush(); pdfOutput.Position = 0; return(File(pdfOutput, "application/pdf", "prince-demo.pdf")); }