public async Task <IActionResult> CreateProofPDF(int employee_proof_seq) { // sudo apt-get install libgdiplus var employproof = await _employproof.Select(employee_proof_seq); var globalSettings = new GlobalSettings { ColorMode = ColorMode.Color, Orientation = Orientation.Portrait, PaperSize = PaperKind.A4, Margins = new MarginSettings { Top = 10 }, DPI = 300, DocumentTitle = "", }; var objectSettings = new ObjectSettings { PagesCount = true, HtmlContent = TemplateGenerator.GetProofHTMLString(employproof), WebSettings = { DefaultEncoding = "utf-8", UserStyleSheet = Path.Combine(Directory.GetCurrentDirectory(), "assets", "proof_style.css") }, HeaderSettings = { FontName = "NanumGothic", FontSize = 9, Right = "", Line = false }, FooterSettings = { FontName = "NanumGothic", FontSize = 9, Right = "", Line = false } }; var pdf = new HtmlToPdfDocument() { GlobalSettings = globalSettings, Objects = { objectSettings } }; var file = _converter.Convert(pdf); return(File(file, "application/pdf", "test" + " 님_재직증명서_" + ".pdf")); // for downloading as sample.pdf }