Need to convert stream file to PDF.

Question

S is my stream variable.
I have successfully converted it into doc format. Now I am trying for pdf one.
Content Type: "application/pdf" doesn't work.
Please give me a solution.

            s = ac.ExportApplicationResultDocument(templatePath, spiderDiagram, bestDiagram, worstDiagram,
                        this._positionsNormalCaseResults, this._positionsWorstCaseResults,
                        this._normalCaseRequiredTrainings, this._worstCaseRequiredTrainings,
                        this._assessedLevel, this._justification, this._normalCaseResultingDecision,
                        this._worstCaseResultingDecision,
                        (InternalStatus)application.IdCurrentApplicationStatus.Value,
                        applicant.FirstName,
                        applicant.LastName,
                        string.Format(Resources.TextResources.ResultPageGlobalResultEADSCorpId, applicant.EADSPersonalID), worstCaseTableImage, bestCaseTableImage, this._assessedDate);
                    Response.Clear();
                    Response.AddHeader("Content-Disposition", "attachment; filename=Result.docx");

                    Response.ContentType = "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
                    s.CopyTo(Response.OutputStream);
                    Response.End();

Answer 1

Hi @SAHA Arunava

Response.AddHeader("Content-Disposition", "attachment; filename=Result.docx");

Does Response represent HttpResponse ?

After search the usage if your code, I am sure your code is ok in .net framework. And in .net core , we can open pdf by return File() , if you want to download it, you can use return new FileContentResult.

1. Open PDF:

public IActionResult OpenPDF()  
{  
        var globalSettings = new GlobalSettings  
        {  
            ColorMode = ColorMode.Color,  
            Orientation = Orientation.Portrait,  
            PaperSize = PaperKind.A4,  
            Margins = new MarginSettings { Top = 10 },  
            DocumentTitle = "PDF Report"  
        };  
        var objectSettings = new ObjectSettings  
        {  
            PagesCount = true,  
            HtmlContent = TemplateGenerator.GetHTMLString(),  
            WebSettings = { DefaultEncoding = "utf-8", UserStyleSheet = Path.Combine(Directory.GetCurrentDirectory(), "assets", "styles.css") },  
            HeaderSettings = { FontName = "Arial", FontSize = 9, Right = "Page [page] of [toPage]", Line = true },  
            FooterSettings = { FontName = "Arial", FontSize = 9, Line = true, Center = "Report Footer" }  
        };  
        var pdf = new HtmlToPdfDocument()  
        {  
            GlobalSettings = globalSettings,  
            Objects = { objectSettings }  
        };  
        var file = _converter.Convert(pdf);  
  
        return File(file, "application/pdf");  
}  

2. Download PDF:

public IActionResult DownloadPDF()  
{  
        var globalSettings = new GlobalSettings  
        {  
            ColorMode = ColorMode.Color,  
            Orientation = Orientation.Portrait,  
            PaperSize = PaperKind.A4,  
            Margins = new MarginSettings { Top = 10 },  
            DocumentTitle = "PDF Report"  
        };  
        var objectSettings = new ObjectSettings  
        {  
            PagesCount = true,  
            HtmlContent = TemplateGenerator.GetHTMLString(),  
            WebSettings = { DefaultEncoding = "utf-8", UserStyleSheet = Path.Combine(Directory.GetCurrentDirectory(), "assets", "styles.css") },  
            HeaderSettings = { FontName = "Arial", FontSize = 9, Right = "Page [page] of [toPage]", Line = true },  
            FooterSettings = { FontName = "Arial", FontSize = 9, Line = true, Center = "Report Footer" }  
        };  
        var pdf = new HtmlToPdfDocument()  
        {  
            GlobalSettings = globalSettings,  
            Objects = { objectSettings }  
        };  
        var file = _converter.Convert(pdf);  
  
        return new FileContentResult(file, "application/pdf")  
        {  
            FileDownloadName = Guid.NewGuid() + ".pdf"  
        };  
}  

My test result:

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Best Regards,
Jason