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PDF font size growing up after creating the pdf [.NET CORE 2.0] #32

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c0deflow opened this issue Mar 21, 2018 · 5 comments
Closed

PDF font size growing up after creating the pdf [.NET CORE 2.0] #32

c0deflow opened this issue Mar 21, 2018 · 5 comments

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@c0deflow
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I am preparing some PDF Layouts. But at some point I get confused. If I run the .net core application on DEBUG Mode, I get the size that I want. If I run the the application in Release (Production) Mode I get a total different pdf (with a bigger font size) back. Is this an issue? I included the CSS (both templates are using the same css) and the pdf can load successfully the font (RNS Sanz) but no luck with the font size. I tried it also without my css, plain example code. But there is the same situation. Is there a setting for that? thanks.

I am using this code

Controller

            string html = "<!DOCTYPE html>" +
                    "<html lang = \"en\">" +
                         "<head>" +
                             "<meta charset = \"UTF-8\">" +
                             "<title> Check </title>" +
                        // "<link href='" + cssPath + "' rel='stylesheet' type='text/css' media='screen'>" +

                        "</head>" +
                        "<body>" +
                            "<div style = \"text-align: center; margin-top:16px;\">" +
                "<p style=\"font-family: 'RNS Sanz'; font-size: 70px;\"> Hi! I am RNS Sanz font. (70px, Release)</p>" +

                            "</div>" +
                            "<div style = \"text-align: center; margin-top:16px;\">" +
                "<p style =\"font-family: 'Roboto'; font-size: 30px;\"> This is roboto font. (30px, Release)</p>" +
                            "</div>" +
                        "</body>" +
                    "</html>";

            var pdf = new HtmlToPdfConverterService(_converter, _env).Convert(html);
            var path = Path.Combine(_env.WebRootPath, "micr.pdf");
            using (var fs = new FileStream(path, FileMode.Create, FileAccess.Write))
            {
                fs.Write(pdf, 0, pdf.Length);
            }

            return new FileContentResult(pdf, "application/pdf");`

HtmlToPdfConverterService

public class HtmlToPdfConverterService
    {
        private IConverter _converter;
        readonly IHostingEnvironment _env;

        public HtmlToPdfConverterService(IConverter converter, IHostingEnvironment env)
        {
            _converter = converter;
            _env = env;

        }

        public byte[] Convert(string html)
        {

            string cssPath = Path.Combine(_env.WebRootPath, "static/css/app.css");

            HtmlToPdfDocument doc = new HtmlToPdfDocument()
            {
                GlobalSettings = {
                    Orientation = Orientation.Portrait,
                    PaperSize = PaperKind.Letter,
                    Margins = new MarginSettings() { Top = 10 , Bottom = 0, Left = 10, Right = 10},
                },
                Objects = {
                        new ObjectSettings() {
                                 HtmlContent = html,
                                 WebSettings = new WebSettings { MinimumFontSize = 12, UserStyleSheet = cssPath }

                            }
                        }
            };

            return _converter.Convert(doc);
        }


    }

I followed this ticket here: #24
The PDF can Read the font "RNS Sanz" but the font size is growing automatically up in Release.

If I don't use any css, I get the same result. Also with this example:

var doc = new HtmlToPdfDocument()
{
    GlobalSettings = {
        ColorMode = ColorMode.Color,
        Orientation = Orientation.Landscape,
        PaperSize = PaperKind.A4Plus,
    },
    Objects = {
        new ObjectSettings() {
            PagesCount = true,
            HtmlContent = "<h1>Hello World</h1>",
            WebSettings = { DefaultEncoding = "utf-8" },
            HeaderSettings = { FontSize = 9, Right = "Page [page] of [toPage]", Line = true, Spacing = 2.812 }
        }
    }
};

pdf font issue
@rdvojmoc
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Where do you deploy your application in Release?

@c0deflow
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Hi @rdvojmoc I am using docker with Debian stretch

@rdvojmoc
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Please check this issue.

@c0deflow
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c0deflow commented Mar 23, 2018 •
edited
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@rdvojmoc Thank you very much for this post! Changing the Default value of DPI (in GlobalSettings) from 96 to 300 solved my problem. Issue can be closed. Thanks! :)

@BROROZCO
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BROROZCO commented Oct 1, 2021

ya son 3 años tarde jajaja pero tenes que definir el PDI, el estandar es 300 que es lo mismo que el men de arriba xd
saludos desde el futuro

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3 participants
@rdvojmoc @c0deflow @BROROZCO