Using Wkhtmltopdf.NetCore 5.0.2-preview

I'm getting an exception of pdf file not found while running on docker-compose linux container.
I can see an html file created in the root directory(/app) of the container. But it is not being able to generate pdf out of if.
Exception I'm getting is below

Could not find file '/app/c4a6d426-1cd8-4e08-90c3-64067b1b9a56.pdf'.

at Interop.ThrowExceptionForIoErrno(ErrorInfo errorInfo, String path, Boolean isDirectory, Func`2 errorRewriter)
at Microsoft.Win32.SafeHandles.SafeFileHandle.Open(String path, OpenFlags flags, Int32 mode)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options)
at Wkhtmltopdf.NetCore.WkhtmlDriver.Convert(String wkhtmlPath, String switches, String html)
at Wkhtmltopdf.NetCore.GeneratePdf.GetPDF(String html)

I'm trying to convert another package to Wkthmltopdf, but I could not find a way to pass a string argument to wkthmltopdf executable.

In my conversion, I have an argument "--disable-smart-shrinking -T 30 -B 35 --footer-right "page [page] / [topage]" --footer-font-size 9"

I just like to send this exact string to the executable. How can I do this?

I am trying to create a container but it shows me the following error. Any suggestion please? See here. Thanks

Good day everyone,

Can someone help me with displaying Image in PDF...

I try to execute the exemple on mac but i get this error.

Win32Exception: Permission denied
Wkhtmltopdf.NetCore.WkhtmlDriver.Convert(string wkhtmlPath, string switches, string html)
Wkhtmltopdf.NetCore.GeneratePdf.GetPDF(string html)
Wkhtmltopdf.NetCore.GeneratePdf.GetPdf(string View, T model)
Rotativa.Controllers.TestViewsController.GetSSL() in TestViewsController.cs
+
return await _generatePdf.GetPdf("Views/TestBootstrapSSL.cshtml", data);
Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor+TaskOfIActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, object controller, object[] arguments)
System.Threading.Tasks.ValueTask.get_Result()
System.Runtime.CompilerServices.ValueTaskAwaiter.GetResult()
Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.g__Awaited|12_0(ControllerActionInvoker invoker, ValueTask actionResultValueTask)
Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted)
Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)
Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted)
Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|24_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeFilterPipelineAsync()
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Logged|17_1(ResourceInvoker invoker)
Microsoft.AspNetCore.Routing.EndpointMiddleware.g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger)
Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)

Hi fpanaccia,

Great solution however it doesn't work with .net ocre 3.0.

I wonder if we can get .net core 3.0 compatible package of it.

Regards,
MS

Hi

Have been trying to set a name for the document generated using the _generatePdf.GetByteArrayViewInHtml(). Please how can I go about this? Instead of the Document given as the default title when you preview or download, I want to be able to change it.

Thanks.

Hi @fpanaccia,
is there any way to pass footer.html and header.html without have to access the app hosting address. Like can we access it with the path inside the code folder? ex: ~/HtmlTemplate/header.html.

Hi, I'm testing the library on a Windows 10 environment with dotnet core 3.1.
Tests using the GetPDF method work.
Tests using a view fail.

This is the code:

        public async Task<IActionResult> GetByteArray()
        {
            var data = new Panel
            {
                Descr = "This is a test",
                Id = 123456
            };

            var pdf = await _generatePdf.GetByteArray<Panel>("Views/Test.cshtml", data);
            var pdfStream = new System.IO.MemoryStream();
            pdfStream.Write(pdf, 0, pdf.Length);
            pdfStream.Position = 0;
            return new FileStreamResult(pdfStream, "application/pdf");
        }

Hi

I want to add --enable-forms flag in ConvertOptions. Is there any way to do it right now?

TIA

Code:

    public async Task<UploadedFileInformation> RenderPdf<T>(string module, string vista, T format)
    {
        string pathFolder = Path.Combine(storage, $"{file.Id}-{file.Name}");
        byte[] pdf = await _generatePdf.GetByteArray($"Modules/{module}/Views/{vista}.cshtml", format);
        File.WriteAllBytes(pathFolder, pdf);

@fpanaccia help me pleace

Hello !!
I'm flowing this blog But having issue bcs DI could not find
IGeneratePdf

System.InvalidOperationException: Unable to resolve service for type 'Wkhtmltopdf.NetCore.IGeneratePdf' while attempting to activate 'test.Controllers.WeatherForecastController'

here I have supplied .exe and register Wkhtmltopdf in services

this is controller code

Its working totaly fine with root views but not working or finding view in Area folders

 EmailModel model = new EmailModel();
                model.Agent = flight;
                model.Company = _companyMasterService.GetActiveCompany();
                var options = new ConvertOptions
                {
                    PageMargins = new Wkhtmltopdf.NetCore.Options.Margins()
                    {
                        Left = 10,
                        Right = 10,
                        Top = 10,
                        Bottom = 10,
                    }
                };

                _generatePdf.SetConvertOptions(options);
                
                var actionPdf = await _generatePdf.GetByteArray("Agent/Views/Email/Index.cshtml", model);

                System.IO.File.WriteAllBytes(Path.Combine(_webHostEnvironment.WebRootPath, "Log\\Agentpdf", "Ticket_" + id + ".pdf"), actionPdf);

                path = System.IO.Path.Combine(_webHostEnvironment.WebRootPath, "Log\\Agentpdf\\Ticket_" + id + ".pdf");
                var net = new System.Net.WebClient();
                var data = net.DownloadData(path);
                var content = new System.IO.MemoryStream(data);
                return File(content, GetContentType(path), Path.GetFileName(path));

What is wrong i have done?

Hi, great work.
I need set -margin-left 0mm --margin-right 0mm in command arguments. How can i do this?

Hi, great work on this project. is there a way i can add pagination and header and footer text per page and page info like page 1 of 10? thanks

Hi everyone,

I've been having this permission error when I deploy on the Linux environment in Docker + Kubernetes using Azure Dev Spaces

Exception Permission Denied
TargetSite at Wkhtmltopdf.NetCore.GeneratePdf.GetByteArrayViewInHtml(String ViewInHtml)

I have run this RUN chmod 755 on the path where the Linux distribution runner is located

Please come to my aid

I try to run wkhtmltopdf on macOS 10.15.5 and my error is:

An exception of type 'System.ComponentModel.Win32Exception' occurred in Wkhtmltopdf.NetCore.dll but was not handled in user code: 'Bad CPU type in executable'

I don't know what can be wrong.

I have some legal documents that I'm having to recreate in PDF from a .Net 5 (core) MVC application (using wkhtmltopdf.netcore 3.0.2). Obviously, I'm using your tool and for the most part, it's worked great. However, when it comes to footers, my legal docs have special conditions for footers. Like some pages not having paging and others resetting the starting page when a new section is encounters. With that being said, how do you use the "url" and special parameters that you've given us? How does using the "section" parameter work? I can't get it too. Section is always blank.

https://localhost:44342/footer.html?
page=1&section=&sitepage=1&title=&subsection=&username=Veaer&url=google.com&frompage=1&subsubsection=&age=20&isodate=2022-02-
14&topage=20&doctitle=&sitepages=20&webpage=-&time=3:10:34%20PM&date=2/14/2022

I'm behind on a project due to this footer issue and we might have to bail on using this tool. Any help would be awesome!
Thanks

Getting "QPainter::begin(): Returned false Exit with code 1, due to unknown error." when I use .Net 5 Linux docker container.

Working fine with Aspnet Core 3.1 version. Please help me to resolve this issue

This is the error

Docker File

Bug Information

Version Number of Plugin: 3.0.2
Version of VS: Microsoft Visual Studio 2019 V. 16.6.5
Target Framework: .NET Core 3.1

Steps to reproduce the Behavior

1. Add services.AddWkhtmltopdf(); to startup.
2. Add IGeneratePdf to constructor.
3. Call GetByteArrayViewInHtml(view, model) and receive the respective value for the pdf generated.

Expected Behavior

Calling GetByteArrayViewInHtml(view, model) should return the pdf generate in a byte array format.

Actual Behavior

Calling GetByteArrayViewInHtml(view, model) instead throws the below exception:

Could not find an IRouter associated with the ActionContext. If your application is using endpoint routing then you can get a IUrlHelperFactory with dependency injection and use it to create a UrlHelper, or use Microsoft.AspNetCore.Routing.LinkGenerator.

Code snippet

This is the snippet in my controller:

var resPDF = await _pdfGenerator.GetByteArrayViewInHtml<ReportInEditViewModel>("PDFTemplates/Report", model);

This is a section of my view:

@model ViewModels.ReportInEditViewModel
@{  Layout = null; }

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link rel="stylesheet" href="~/lib/fontawesome/css/all.min.css" />
    <link rel="stylesheet" href="~/lib/bootstrap/dist/css/bootstrap.min.css" />
    <script src="~/lib/bootstrap/dist/js/bootstrap.bundle.min.js"></script>
    <script src="~/lib/fontawesome/js/all.min.js"></script>
</head>
<body>
   ...
</body>
</html>

Final Comments

Any help would be greatly appreciated! 😉

I have the exception after deploying in docker container(linux)
System.IO.IOException: Broken pipe at Wkhtmltopdf.NetCore.GeneratePdf.GetByteArrayViewInHtml[T](String ViewInHtml, T model) at Document.API.Services.QuoteDocument.QuoteDocumentService.GenerateQuoteConfirmationDocument(QuoteConfirmationViewModel model) in /src/Services/Document/Document.API/Services/QuoteDocument/QuoteDocumentService.cs:line 28 at Document.API.Controllers.QuoteDocumentController.GetQuoteConfirmationDocument() in /src/Services/Document/Document.API/Controllers/QuoteDocumentController.cs:line 80 at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.TaskOfIActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeActionMethodAsync>g__Logged|12_1(ControllerActionInvoker invoker) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeNextActionFilterAsync>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.<InvokeInnerFilterAsync>g__Awaited|13_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextExceptionFilterAsync>g__Awaited|25_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
IMG:

I guess that problem in Dockerfile (need to install extra packages)
I changed Dockerfile(from example):
`FROM mcr.microsoft.com/dotnet/core/aspnet:3.1-buster-slim AS base
WORKDIR /app
RUN apt-get update -qq && apt-get -y install libgdiplus libc6-dev
EXPOSE 80
EXPOSE 443

FROM mcr.microsoft.com/dotnet/core/sdk:3.1-buster AS build
WORKDIR /src
COPY ["Services/Document/Document.API/Document.API.csproj", "Services/Document/Document.API/"]
COPY ["BuildingBlocks/EventBus/IntegrationEventLogEF/IntegrationEventLogEF.csproj", "BuildingBlocks/EventBus/IntegrationEventLogEF/"]
COPY ["BuildingBlocks/EventBus/EventBus/EventBus.csproj", "BuildingBlocks/EventBus/EventBus/"]
COPY ["BuildingBlocks/EventBus/EventBusRabbitMQ/EventBusRabbitMQ.csproj", "BuildingBlocks/EventBus/EventBusRabbitMQ/"]
COPY ["BuildingBlocks/EventBus/EventBusServiceBus/EventBusServiceBus.csproj", "BuildingBlocks/EventBus/EventBusServiceBus/"]
RUN dotnet restore "Services/Document/Document.API/Document.API.csproj"
COPY . .
WORKDIR "/src/Services/Document/Document.API"
RUN dotnet build "Document.API.csproj" -c Release -o /app/build

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

FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .
RUN chmod 755 /app/Rotativa/Linux/wkhtmltopdf

ENTRYPOINT ["dotnet", "Document.API.dll"]`
IMG:

Now I cannot build the image:

Can somebody help me to solve the problem?

if (success)
            {
                var options = new ConvertOptions
                {
                    HeaderHtml = "http://localhost:44321/header.html",
                    PageOrientation = Wkhtmltopdf.NetCore.Options.Orientation.Landscape
                };

                _generatePdf.SetConvertOptions(options);

                return await _generatePdf.GetPdf("FacturePdf.cshtml", data);
            }

Exception: Exit with code 1 due to network error: RemoteHostClosedError