No Fonts installed on this device #125

jamesgurung · 2020-11-01T18:23:51Z

Everything was running fine on 1.2.6, but since updating to 1.2.8 the default font resolver can no longer find fonts when deployed to a Linux container. It runs fine on Windows, but not when deployed using the following Dockerfile. The error is "No Fonts installed on this device".

FROM mcr.microsoft.com/dotnet/aspnet:5.0 AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443

# Install System.Drawing native dependencies
RUN apt-get update \
    && apt-get install -y --allow-unauthenticated \
       libc6-dev \
       libgdiplus \
       libx11-dev \
    && rm -rf /var/lib/apt/lists/*

# Install Microsoft core fonts
RUN echo "deb http://deb.debian.org/debian stable main contrib non-free" > /etc/apt/sources.list \
    && echo "ttf-mscorefonts-installer msttcorefonts/accepted-mscorefonts-eula select true" | debconf-set-selections \
    && apt-get update \
    && apt-get install -y \
        ttf-mscorefonts-installer \
    && apt-get clean \
    && apt-get autoremove -y \
    && rm -rf /var/lib/apt/lists/*

FROM mcr.microsoft.com/dotnet/sdk:5.0 AS build
WORKDIR /src
COPY MyProject.csproj MyProject/
RUN dotnet restore "MyProject/MyProject.csproj"
COPY . MyProject/
WORKDIR "/src/MyProject"
RUN dotnet build "MyProject.csproj" -c Release -o /app/build

FROM build AS publish
RUN dotnet publish "MyProject.csproj" -c Release -o /app/publish

FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .
ENTRYPOINT ["dotnet", "MyProject.dll"]

I realise it's possible to implement a custom IFontResolver (although I know literally nothing about where Linux fonts are installed, so wouldn't know where to start!)

Is this something that could be fixed to work by default in this scenario?

The text was updated successfully, but these errors were encountered:

Marv51 · 2020-11-04T16:53:13Z

Yup, same here my GitHub Action tests fail on Linux with:

System.IO.FileNotFoundException: No Fonts installed on this device!
  Stack Trace:
      at PdfSharpCore.Utils.FontResolver.ResolveTypeface(String familyName, Boolean isBold, Boolean isItalic)
   at PdfSharpCore.Fonts.FontFactory.ResolveTypeface(String familyName, FontResolvingOptions fontResolvingOptions, String typefaceKey)
   at PdfSharpCore.Drawing.XGlyphTypeface.GetOrCreateFrom(String familyName, FontResolvingOptions fontResolvingOptions)
   at PdfSharpCore.Drawing.XFont.Initialize()
   at PdfSharpCore.Drawing.XFont..ctor(String familyName, Double emSize, XFontStyle style, XPdfFontOptions pdfOptions)
   at PdfSharpCore.Drawing.XFont..ctor(String familyName, Double emSize, XFontStyle style)

pingvinen · 2020-11-17T11:06:50Z

I am seeing the same issue on my linux desktop machine.

Edit: and I can confirm that simply switching the version to 1.2.6 makes the code work.

eltonina · 2020-12-22T01:29:09Z

I created this PR #132, for my work fine; I used 'ubuntu-latest' in Azure-devops

darzid · 2021-03-02T18:46:55Z

I've tried v1.2.11 and v1.2.12 on Cent OS, but I still get the same message: "No Fonts installed on this device!".

I've also tried to copy a .ttf file to ~/.fonts, but then I still get the same message.

Which I find strange, because the issue reported was caused by subfolders not being included.
So, copying a single .ttf file directly to ~/.fonts (which is specified in my /etc/fonts/fonts.conf file) should not even be affected by the reported issue. Any advice?

ststeiger · 2021-03-03T11:52:13Z

Your /etc/fonts/fonts.conf is not being read.
The font directories are hard-coded.

darzid · 2021-03-04T19:39:59Z

Ok. In which folders does it look then?

mishun · 2021-03-05T02:26:43Z

If I understand correctly, it kinda reads fonts.conf, but in a very hacky way:

PdfSharpCore/PdfSharpCore/Utils/FontResolver.cs

Lines 60 to 91 in 0f45719

    
           static string[] ResolveLinuxFontFiles() 
        
           { 
        
               var fontList = new List<string>(); 
        
               var confRegex = new Regex("<dir>(?<dir>.*)</dir>", RegexOptions.Compiled); 
        
               var ttfRegex = new Regex(@"\.ttf", RegexOptions.IgnoreCase | RegexOptions.Compiled); 
        
               using (var reader = new StreamReader(File.OpenRead("/etc/fonts/fonts.conf"))) 
        
               { 
        
                   string line; 
        
                   while ((line = reader.ReadLine()) != null) 
        
                   { 
        
                       var match = confRegex.Match(line); 
        
                       if (!match.Success) continue; 
        
                       var path = match.Groups["dir"].Value.Replace("~", Environment.GetEnvironmentVariable("HOME")); 
        
                       if (!Directory.Exists(path)) continue; 
        
                       foreach (var enumerateDirectory in Directory.EnumerateDirectories(path)) 
        
                       { 
        
                           var pathFont = Path.Combine(path, enumerateDirectory); 
        
                           foreach (var strDir in Directory.EnumerateDirectories(pathFont)) 
        
                           { 
        
                               fontList.AddRange(Directory.EnumerateFiles(strDir) 
        
                                   .Where(x => ttfRegex.IsMatch(x))); 
        
                           } 
        
                       } 
        
                   } 
        
               } 
        
               return fontList.ToArray(); 
        
           }

ststeiger · 2021-03-05T11:04:31Z

Correction: It used to be hard-coded.

Yea, unfortunately, it's hard to find a good documentation for what to do with the contents of fonts.conf.
It looks like it searches for all directories listed directly in fonts.conf between dir-tags, then enumerates all fonts in these directories that end with ".ttf" (case-insensitive).
Also, it only searches the top directory:
return InternalEnumerateFiles(path, "*", SearchOption.TopDirectoryOnly);

ststeiger · 2021-03-05T11:39:34Z

Fixed the top-directory issue, and replaced the .ttf regex with EndsWith (case-insensitive).
So if your fonts.conf contains

	<dir>/usr/share/fonts</dir>
	<dir>/usr/local/share/fonts</dir>
	<dir prefix="xdg">fonts</dir>
	<!-- the following element will be removed in the future -->
	<dir>~/.fonts</dir>

it should now find *.ttf fonts in ~/.fonts and all of its subdirectories.

ststeiger · 2021-03-05T11:43:08Z

Question is, should we only load *.ttf, or also *.woff and *.otf.

darzid · 2021-03-05T12:32:19Z

I only need ttf Mvg, Steven

…

________________________________ From: Stefan Steiger <notifications@github.com> Sent: Friday, March 5, 2021 12:43:23 PM To: ststeiger/PdfSharpCore <PdfSharpCore@noreply.github.com> Cc: darzid <steven.brom@outlook.com>; Comment <comment@noreply.github.com> Subject: Re: [ststeiger/PdfSharpCore] No Fonts installed on this device (#125) Question is, should we only load *.ttf, or also *.woff and *.otf. — You are receiving this because you commented. Reply to this email directly, view it on GitHub<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fststeiger%2FPdfSharpCore%2Fissues%2F125%23issuecomment-791367325&data=04%7C01%7C%7C4d99fdfa631242c1609c08d8dfcbe274%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637505414048934731%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=1cVbNdu8yj9AHmHoXul08DDWb7FxGknv9we45YaRzf8%3D&reserved=0>, or unsubscribe<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnotifications%2Funsubscribe-auth%2FAMEXUFN5RYL4LN5I6UN6XJTTCC7VXANCNFSM4TGVSCVQ&data=04%7C01%7C%7C4d99fdfa631242c1609c08d8dfcbe274%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637505414048934731%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=pGV9aiAscJCxtD%2Fu%2BoEvVkADIyNZFiAsilWlrIfgbzI%3D&reserved=0>.

ststeiger · 2021-03-05T13:35:05Z

@darzid:
In addition to reading the fonts.conf directory, I've now added

/usr/share/fonts
/usr/local/share/fonts
System.Environment.GetEnvironmentVariable("HOME") + "/.fonts"

hard-coded, just in case there is no fonts.conf, or that there are no such entries.
The fonts ending in .ttf in those folders (and subfolders) should now be picked up.

ststeiger · 2021-03-05T13:56:25Z

@jamesgurung, @pingvinen: Linux uses fontfonfig to configure the location of the fonts.
Hard-coded, it now searches in /usr/share/fonts, /usr/local/share/fonts and ~/.fonts, and in addition to that, in all the directories added in dir tags in /etc/fonts/font.conf (only tags added directly there, not from other conf files referenced in font.conf).
If you don't know where the fonts are located, you can always embed the fonts you need as embedded-resources in an assembly, and implement your own IFontResolver, which loads them from the embedded-resources in that assembly. Of course that requires that the font's license allows "embedding".

jamesgurung · 2021-03-05T16:48:52Z

@ststeiger Many thanks. I no longer have an issue; it was a regression in 1.2.8 that I assume was fixed in a subsequent update because everything is working fine now. 👍

I haven't closed because it looks like others are having related issues.

notclive · 2021-03-05T19:51:11Z

I found that hard-coded directories weren't working for me, fonts inside /usr/share/fonts weren't being picked up.
Looking at AddFontsToFontList it appears that fonts need to be at least two directories deep, putting a font inside /usr/share/fonts/a/b worked.

darzid · 2021-03-11T15:57:43Z

Thanks!

…

________________________________ From: Stefan Steiger ***@***.***> Sent: Friday, March 5, 2021 14:35 To: ststeiger/PdfSharpCore ***@***.***> Cc: darzid ***@***.***>; Mention ***@***.***> Subject: Re: [ststeiger/PdfSharpCore] No Fonts installed on this device (#125) @darzid<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fdarzid&data=04%7C01%7C%7C281a0ec066774ad3dced08d8dfdb864a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637505481224246093%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=fWNMEiKZE2Hs4MfS7xivmbbMccYrRatA3QQjg5MMb%2FY%3D&reserved=0>: In addition to reading the fonts.conf directory, I've now added /usr/share/fonts /usr/local/share/fonts System.Environment.GetEnvironmentVariable("HOME") + "/.fonts" hard-coded, just in case there is no fonts.conf, or that there are no such entries. The fonts ending in .ttf in those folders (and subfolders) should now be picked up. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fststeiger%2FPdfSharpCore%2Fissues%2F125%23issuecomment-791422693&data=04%7C01%7C%7C281a0ec066774ad3dced08d8dfdb864a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637505481224246093%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=O3GspxdC04y6vdJgS7Dh6Es4buqS1X5mkRvsioj0s08%3D&reserved=0>, or unsubscribe<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnotifications%2Funsubscribe-auth%2FAMEXUFP4PVQ46FECPNPW7V3TCDMZTANCNFSM4TGVSCVQ&data=04%7C01%7C%7C281a0ec066774ad3dced08d8dfdb864a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637505481224256048%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=0N1yuIqW%2Fuce3FGDNRHxsLfEImI5wOqkj55KtI8pQDY%3D&reserved=0>.

ststeiger · 2021-03-12T14:32:49Z

@jamesgurung @notclive: Merged pinvoke of libfontconfig with pull request 151 for Linux.
Fonts should be resolved fine now.
You might want to check if it works for you.

bcourtneyri · 2021-03-24T11:52:56Z

@notclive did you have to stay with the two directory deep solution? I have copied a .ttf file to usr/share/fonts but am still getting the error. I have a .net core web app running in a docker container on an AWS Linux server. Does the Docker container need to reference the font folder (usr/share/fonts) via a mount?

ststeiger · 2021-03-26T22:56:08Z

@bcourtneyri: Does the container have truetype-fonts installed ?

bcourtneyri · 2021-03-27T11:42:43Z

@ststeiger thanks for the follow up. The container itself does not. I'm considering whether to mount a volume with .ttfs to the linux server or to package the .ttf fonts within the asp net core project. Is it possible to do some sort of font resolve with packaged .ttfs?

ststeiger · 2021-03-27T21:32:15Z

Sure, you can make a dll where the ttfs are an embedded resource.
Then you need to implement a font-resolver that reads fonts from the embedded resources.
That should eliminate the possiblity of the font not being installed or found.
However, that increases your application's size by the size of all the ttf files you embed.

bcourtneyri · 2021-03-29T14:15:41Z

@ststeiger thanks again. I managed to it working using the sample code you provided.

Lure5134 · 2021-06-21T19:27:52Z

Relates to #161

diogoxluis · 2023-12-06T18:45:15Z

I'm getting "No Fonts installed on this device!" error, running version 1.3.62 on .net7.0 linux container.

Do I need to do any extra step or should it just work?

System.IO.FileNotFoundException: No Fonts installed on this device!
at PdfSharpCore.Utils.FontResolver.ResolveTypeface(String familyName, Boolean isBold, Boolean isItalic)
at PdfSharpCore.Fonts.FontFactory.ResolveTypeface(String familyName, FontResolvingOptions fontResolvingOptions, String typefaceKey)
at PdfSharpCore.Drawing.XGlyphTypeface.GetOrCreateFrom(String familyName, FontResolvingOptions fontResolvingOptions)
at PdfSharpCore.Drawing.XFont.Initialize()
at PdfSharpCore.Drawing.XFont..ctor(String familyName, Double emSize, XFontStyle style, XPdfFontOptions pdfOptions)
at PdfSharpCore.Drawing.XFont..ctor(String familyName, Double emSize)
at PdfSharpCore.Pdf.AcroForms.PdfTextField..ctor(PdfDictionary dict)
at PdfSharpCore.Pdf.AcroForms.PdfAcroField.PdfAcroFieldCollection.CreateAcroField(PdfDictionary dict)
at PdfSharpCore.Pdf.AcroForms.PdfAcroField.PdfAcroFieldCollection.get_Item(Int32 index)
at PdfSharpCore.Pdf.PdfDocument.MakeAcroFormsReadOnly()
at DSServer.Commands.ConvertToPDF.ConvertToPDF.ExecuteAsync(MemoryStream originalFile) in /app/src/DSServer/Commands/ConvertToPDF/ConvertToPDF.cs:line 30
at REG.Documents.Business.DocumentExchangeItemMessageAttachments.Commands.Download.DownloadDocumentExchangeItemMessageAttachmentCommand.ExecutePdfForRecipientAsync(Guid attachmentId, Stream target) in /app/src/REG.Documents.Business/DocumentExchangeItemMessageAttachments/Commands/Download/DownloadDocumentExchangeItemMessageAttachmentCommand.cs:line 172
at REG.Documents.Api.Controllers.DocumentExchangeItemMessageAttachmentController.DownloadMessageAttachmentForRecipient(Guid attachmentId) in /app/src/REG.Documents.Api/Controllers/DocumentExchangeItemMessageAttachmentController.cs:line 102
at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.TaskOfIActionResultExecutor.Execute(ActionContext actionContext, IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.g__Logged|12_1(ControllerActionInvoker invoker)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.g__Awaited|13_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|20_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Routing.EndpointMiddleware.g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger)
at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests[TContext](IHttpApplication`1 application)

bcourtneyri · 2023-12-06T19:08:25Z

@diogoxluis I packaged the fonts into my app and referenced them from there. It worked for me as I only needed a few.

diogoxluis · 2023-12-07T09:25:41Z

@diogoxluis I packaged the fonts into my app and referenced them from there. It worked for me as I only needed a few.

Thanks... any pointers to how I do that?
I tried the dockerfile code at the top, but didn't do the trick for me.

bcourtneyri · 2023-12-07T10:50:07Z

You just put the ttf files into a folder somewhere in your project and refer to them in the code.

Rahul-Vaity · 2024-04-03T09:59:08Z

After using 1.2.6 version I'm getting "The type initializer for 'PdfSharpCore.Utils.FontResolver' threw an exception".

NilsPur mentioned this issue Nov 2, 2020

Linux: Report export not working CactuseSecurity/firewall-orchestrator#407

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darzid mentioned this issue Mar 2, 2021

No Fonts installed on this device #148

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jamesgurung closed this as completed Dec 30, 2021

IndexGit mentioned this issue Dec 5, 2022

No Fonts installed on this device #309

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No Fonts installed on this device #125

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jamesgurung commented Nov 1, 2020

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No Fonts installed on this device #125

No Fonts installed on this device #125

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