pruiz / wkhtmltoxsharp Goto Github PK

C# wrapper wrapper (using P/Invoke) for the excelent Html to PDF conversion library wkhtmltopdf library.

C# 70.71% HTML 29.29%

wkhtmltoxsharp's Introduction

This is a C# wrapper (using P/Invoke) for the excellent Html to PDF conversion library wkhtmltopdf.

PREREQUISITES

The embedded wkhtmltopdf project project requires Visual C++ 2015 Redistributable (x86) to be installed on the machine at runtime. You can grab it here from the Microsoft website.

CURRENT STATUS & LIMITATIONS

I've been using it in production since Q4/2010, and it has worked fine so far, so we might say it's almost 'production ready'..

The way I'm using the component is from a back office windows service which handles html->pdf conversion as part of some workflows initiated by users from a web application, so, the web application does not directly call WkHtmlToXSharp, but instead sends a message thru NServiceBus to an independent service which handles (among other tasks) generation of a PDF from Html, a Pdf document which it's later made available to our user thru the web application..

As I said, it is working quite nicely, however, I think I should advise you about the current limitations of the API:

Concurrent conversions: The component exposes two main conversion classes 'WkHtmlToPdfConverter' & 'MultiplexingConverter', both serving as a mean to convert from html to pdf, WkHtmlToPdfConverter it's a plain OO wrapper against wkhtmltox.dll's API, but, due to an wkhtmltox.dll's limitation, all calls to it's API should be made from the same thread, which can be a problem on a web application. To somewhat avoid such a limitation I have defined a class named 'MultiplexingConverter' which uses and internally created thread to perform conversions serializing calls to the underlaying C library within such thread.

The API it's exactly the same one as WkHtmlToPdfConverter exposes, it is just a wrapper which handles (and hides) complexities involved in using the same thread for all calls. Also, this imposes a performance hit (as conversions are not really run concurrently, but serialized under a single 'proxy' thread), so if your application is in the need of massive concurrent conversions, this might be a problem.

No html to image conversions yet: Currently the API only supports Html->Pdf conversions, although wkhtmltox.dll supports html->image too.. While implementing WkHtmlToImage should be pretty easy, it's still on TODO due to time constraints.
No 64bits on windows: No native 64bit windows dll is available from the wkhtmltopdf project, and even I tried and built it by myself, the produced component worked pretty flawlessly, probably due to limitations on current gnu toolchain (or even qt) on windows 64.. so all this means there's no support for running on 64bit-only .Net environments.

Currently there are two possible workarounds:
1. Build your projects linking with WkHtmlToXSharp.dll as 'x86' instead of 'AnyCpu'.
2. Or run your application on a 32bit-only application pool on IIS.
Normal P/Invoke restrictions: This assembly uses P/Invoke to call wkhtmltox.dll, so normal restrictions deriving from using P/Invoke apply..

As a final note, I should note that when using this component there's no need to download nor install wkhtmltox.dll, as native .dll/.so files needed are embedded into WkHtmlToXSharp.dll and they are deployed automatically the first time a conversion is performed.

This makes the dll bigger (even if native dll's are embedded as gzipped resources), but this makes things much more fun & easier.. ;) As the embedded dll is written to disk, your project will need write permissions to the directory it's installed in.

No ASP.NET/IIS Support: This has to do with the way IIS manages underlaying threads, and application pools. IIS instantiates & re-cycles pools and AppDomains from time to time, and this causes non-managed resources used by this library to not be released properly.

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wkhtmltoxsharp's Issues

Provide strong name signed versions of WkHtmlToXSharp.Win32.dll / WkHtmlToXSharp.Win64.dll

Hi,

There is one small inconsistency that not allowing WkHtmlToXSharp libraries be used in signed assemblies — WkHtmlToXSharp.Win32.dll / WkHtmlToXSharp.Win64.dll not signed and cannot be loaded.

WkHtmlToXSharp.dll is signed, can we also provide option for signed platform specific assemblies?

Suport Custom Font

Hi,Pruiz.thanks your project very mach!
WkHtmlToXSharp is very good!
I've got some problems on with WkHtmlToXSharp,
My HTML like the document:
<h1 style='font-family:Microsoft YaHei;'>I am Microsoft YaHei;...</h1>
The HTML font is “Microsoft YaHei”，but the PDF font is “SimSun”,eg:

I find some people discuss the problem on stackoverflow:use-custom-fonts-with-wkhtmltopdf.

Many people suggest use “@font-face”,eg:

<html>
<style type="text/css">
@font-face {
   font-family: 'MSYH';
   font-style: normal;
   font-weight: normal;
   src: url(http://7xrayk.com1.z0.glb.clouddn.com/MSYH.TTC) format('truetype');
   }
</style>
<meta http-equiv='Content-Type' content='text/html; charset=utf-8' />
<h1 style='font-family:MSYH;'>I am Microsoft YaHei;...</h1>
<h1 style='font-family:Microsoft YaHei;'>I am Microsoft YaHei;...</h1>
</html>

But Convert to pdf too slow because “Microsoft YaHei”(MSYH.TTC) more than 20M.

So,I want to add "Microsoft YaHei" to WkHtmlToXSharp project.

What should I do?

Thanks and Regards.

x64 Support

In the readme, you wrote that an x64 compile of WkHtmlToPdf 'worked pretty flawlessly'; was there anything broken/preventative from using this in a x64 environment if it worked?

Or was it just convenience, i.e., to be able to just drop in the WkHtmlToPdf lib as built rather than go off and recompile in x64.

Running this library under IIS7 & ASP.NET 4.0

Hi,

I read in an earlier issue that running this lib under IIS is not supported. What does this imply? I would like to use this library, and get rid of AbcPdf in my ASP.NET 4.0 project. Is it possible? I do not want to use any web service or windows service.

Can I use it on a 64bit OS with IIS7 app pool set to 32-bit? If yes (as per your readme) then why did you mention here that IIS is not supported: #8 (comment)

Thank you,

Vivek

Getting intermittent error that shuts down app pool

Intermittently we're getting an exception from the queue thread that results in the entire IIS app pool shutting down. We're using the MultiplexingConverter in response to an HTTP call.

Unfortunately, the exception is happening somewhere we can't wrap in a try {} catch{} block so the information we can provide is limited. We were also unable to try catching the error by attaching the debugger to the source project.

Exception message:

An unhandled exception of type 'System.Reflection.TargetInvocationException' occurred in mscorlib.dll
mscorlib is microsoft dll

Thread: WkHtmlToPdf Queue Thread: 1

Any assistance or direction you can provide would be greatly appreciated.

Wkhtmltopdf build environment

Hello. Can you describe which tools and environment are you used to build wkhtmltopdf lib and its x64 version. What version of QT, with wkhtmltopdf patches or not. What toolchain - mingw or Visual Studio. Thank you.

Only works first time

Hi,

I'm trying to generate a PDF from a html string using the following code in an asp.net web application:

    public static MemoryStream WkHtmlToXSharp_ConvertToPDF(string wHTML)
        {
            MemoryStream msOutput = new MemoryStream();
            WkHtmlToXSharp.MultiplexingConverter htmlToPdfConverter = new MultiplexingConverter();
            htmlToPdfConverter.ObjectSettings.Load.LoadErrorHandling = LoadErrorHandlingType.ignore;
            byte[] pBytes = htmlToPdfConverter.Convert(wHTML);
            htmlToPdfConverter.Dispose();
            msOutput.Write(pBytes, 0, pBytes.Length);
            return msOutput;
        }

I then return the stream to the browser to download. Anyway, it works great the first time, but the second time I run this the generated PDF is plain text (all images, styles and layout such as tables ect are missing).

Can you please help me?

Regards
Dean

Access violation on IIS 7.5 windows 2008 R2

Hi,

We encounter an issue sometimes on our website with wkhtml when we restart Server Application or deploy news files.
To resolve this problem, we need to recycle pool after each deployment.

Thanks,

Log:

Message: Une exception a été levée par la cible d'un appel.

Exception type: System.Reflection.TargetInvocationException
Stack Trace:
at Sanford.Threading.DelegateQueue.EndInvoke(IAsyncResult result)
at Sanford.Threading.DelegateQueue.Invoke(Delegate method, Object[] args)
at WkHtmlToXSharp.MultiplexingConverter.Convert(String inputHtml)
at PrevifranceFront.Previfrance.Services.getFile.ProcessRequest(HttpContext context)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

Message: Tentative de lecture ou d'écriture de mémoire protégée. Cela indique souvent qu'une autre mémoire est endommagée.

Exception type: System.AccessViolationException
Stack Trace:
at WkHtmlToXSharp.NativeCalls.wkhtmltopdf_convert(IntPtr converter)
at WkHtmlToXSharp.WkHtmlToPdfConverter._Convert(String inputHtml)
at WkHtmlToXSharp.WkHtmlToPdfConverter.Convert(String inputHtml)
at WkHtmlToXSharp.MultiplexingConverter.b__9(String x)

System.DllNotFoundException: wkhtmltox0

Firstly, great library and with a the two interfaces (single and multi-thread) this seems to be the programmers choice for html > pdf.

That being said however, I am struggling to get this to work on a development machine. I get on run 'Exception has been thrown by the target of an invocation' ... DllNotFoundException, Unable to Load DLL 'wkhtmltox0'. Your documentation says this is automatically created on first conversion - perhaps this isn't happening? Or I need permissions on the bin or something? Can you offer any suggestions?

Thanks :)

Asp.net/IIS Support

In issues #30 and #10, its stated that this project does not support IIS/ASP.net. This is because of of incompatibilities with the app pool recycling and the releasing of resources in non-managed code.

Is it feasible to update how those resources are managed in order to fix this issue? I'm willing to put in the effort to try and make this project compatible with the app pool recycling if I could be pointed in the direction of where these non-managed code resources are at.

Upgrade to 0.12.6

Please upgrade the wkhtml library from 0.12.5 to 0.12.6 so it works for 64-bit ARM.

Not working on linux

Hi,
running the library on linux it does not seems to have the wkhtmltox0 library embedded, since it produces the following error :

 An unhandled exception has occurred while executing the request.

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.DllNotFoundException: Unabl to load shared library 'wkhtmltox0' or one of its dependencies. In order to help diagnose loading problems, consider setting the LD_DEBUG env ronment variable: libwkhtmltox0: cannot open shared object file: No such file or directory
at WkHtmlToXSharp.NativeCalls.wkhtmltopdf_version()
at WkHtmlToXSharp.WkHtmlToPdfConverter..ctor()
at WkHtmlToXSharp.MultiplexingConverter.<>c.<.ctor>b__26_0()
--- End of inner exception stack trace ---
at Sanford.Threading.DelegateQueue.EndInvoke(IAsyncResult result)
at Sanford.Threading.DelegateQueue.Invoke(Delegate method, Object[] args)
at WkHtmlToXSharp.MultiplexingConverter..ctor()
at HtmlToPdfCore.Web.Controllers.HomeController.GenerateTestPdf() in C:\Dev\OnitGit\OnTms\src\HtmlToPdf\HtmlToPdfCore.Web\Controllers\HomeC ntroller.cs:line 26
at lambda_method(Closure , Object , Object[] )
at Microsoft.AspNetCore.Mvc.Internal.ActionMethodExecutor.SyncActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExec tor executor, Object controller, Object[] arguments)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeActionMethodAsync()
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeNextActionFilterAsync()
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow(ActionExecutedContext context)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeInnerFilterAsync()
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResourceFilter()
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context)
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeFilterPipelineAsync()
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeAsync()
at Microsoft.AspNetCore.Routing.EndpointMiddleware.Invoke(HttpContext httpContext)
at Microsoft.AspNetCore.Routing.EndpointRoutingMiddleware.Invoke(HttpContext httpContext)
at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware.Invoke(HttpContext context)

the nuget packages for WkHtmlToXSharp.Linux32 version 1.2.* are all very small (20k) i doubt it has the linux lib embedded, 1.1.latest it's 15+Mb instead, looks working.

Unfortunatly version 1.1.23.22 does not work on windows either :(

Can you point me to a solution ?
Valerio

Could not load file or assembly `System.Configuration.ConfigurationManager`

Steps to Reproduce

Install the WkHtmlToXSharp.Bundle Nuget package
Try to run the following code:

WkHtmlToXLibrariesManager.Register(new Linux32NativeBundle());
WkHtmlToXLibrariesManager.Register(new Linux64NativeBundle());
WkHtmlToXLibrariesManager.Register(new Win32NativeBundle());
WkHtmlToXLibrariesManager.Register(new Win64NativeBundle());

using (MultiplexingConverter converter = new MultiplexingConverter())
{
	//WkHtmlToPdfConverter converter = new WkHtmlToPdfConverter();
	converter.GlobalSettings.Size.PageSize = PdfPageSize.Letter;

	byte[] data = converter.Convert(@"
	<!DOCTYPE html>
	<html>
	<body>

	<h1>My First Heading</h1>

	<p>My first paragraph.</p>

	</body>
	</html>
	");

	File.WriteAllBytes("test.pdf", data);
}

Obviously the fix is to install System.Configuration.ConfigurationManager but the dependencies of WkHtmlToXSharp should probably include this so it gets installed automatically.

HTML to PDF conversion using WkHtmlToXSharp Caching Issue

I want to convert an HTML file to PDF file, and I was using "wkhtmltopdf.exe".
Then we moved this application to a shared hosting server. This server, wouldn't allow to run .exe files, so that I have to use the WkHtmlToXSharp.dll [wrapper for the above exe].

Its working fine but the problem is this it caching the output somewhere, so that every-time I create a new PDF, it always giving the first one.

I have called .Dispose() and setting the converter to null but no use.

Below is my code. every-time I pass a new html file[htmlFullPath] with different images in it.
Also I am setting the margins 0cm for all sides, but not working.

IHtmlToPdfConverter converter = new MultiplexingConverter();

converter.ObjectSettings.Page = htmlFullPath;

converter.ObjectSettings.Web.EnablePlugins = true;
converter.ObjectSettings.Web.EnableJavascript = true;
converter.ObjectSettings.Web.Background = true;
converter.ObjectSettings.Web.LoadImages = true;
converter.ObjectSettings.Load.LoadErrorHandling = LoadErrorHandlingType.ignore;

converter.GlobalSettings.Orientation = (PdfOrientation)Enum.Parse(typeof(PdfOrientation), orientation);
if (!string.IsNullOrEmpty(pageSize))
    converter.GlobalSettings.Size.PageSize = (PdfPageSize)Enum.Parse(typeof(PdfPageSize), pageSize);

converter.GlobalSettings.Margin.Top = "0cm";
converter.GlobalSettings.Margin.Bottom = "0cm";
converter.GlobalSettings.Margin.Left = "0cm";
converter.GlobalSettings.Margin.Right = "0cm";

Byte[] bufferPDF = converter.Convert();

System.IO.File.WriteAllBytes(pdfUrl, bufferPDF);

converter.Dispose();
converter = null;

WkHtmlToXSharp 1.2.9 nuget package missing

It looks like version 1.2.9 of WkHtmlToXSharp didn't make it to nuget. Since that's a dependency of all of the other packages, they error out when trying to install them.

Multiple URLS into Multiple PDFS

Hey is there any commands to use multiple Links to be generated in multiple Pdfs?
Also anyway of printing without creating the PDF?

Upgrade to 0.12.5

Please upgrade the wkhtml library from 0.12.4 to 0.12.5

First-chance exception at 0x000007FEFDAF940D (KernelBase.dll) in w3wp.exe

First-chance exception at 0x000007FEFDAF940D (KernelBase.dll) in w3wp.exe: 0xE0434352 (parameters: 0xFFFFFFFF80004003, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x000007FEF8D90000).

If there is a handler for this exception, the program may be safely continued.

I use WK in my project.The first convert is error,the second show this exception,How can I do?

Error install the nuget package

When trying to install the nuget package for version 1.2.32 I get the following error:

Failed to add reference to 'wkhtmltox0'.
Please make sure that the file is accessible, and that it is a valid assembly or COM component.

Visual Studio 2019
Net 4.6 Vb.Net Project

Image are not displayed in generated pdf when running x64.

Recently I had to generate a pdf from html what contains images ( img tag) and the they are not shown in resulting pdf.
The result of running in x86 mode is as expected.
Could this be related with some missing dependencies?

x64 bit support

Your readme states there is no support for 64-bit because of the upstream lib.
They now have a x64 binary on their download site

And your source got a x64 folder, does that mean the readme is outdatet?

What is the license of this code?

If I wanted to use this in a commercial product, what am I allowed to do?

Converting HTML string to PDF - output is unformatted

When I pass a Page from the Internet, it works perfectly and converts the HTML exactly as the page looks. My requirements however mean I need to pass it a string of HTML so I'm using Convert(ValidHtmlString) instead of setting a Page and just calling Convert().

When I pass in my HTML string, it's outputting a PDF, but it's completely unformatted. It even outputs my CSS style declarations. For example, here's the beginning of one of my PDF outputs:

body { font-family: Arial; font-size: 14px; width: 796px; } #letterLeft { width: 45%; padding-left: 7%; float: left; } #letterRight { width: 34%;
float: left; padding-top: 20px; padding-left: 8%; } .GreenBox { margin-top: -8px; background-color: #D7E4BD; padding: 20px; width:
65%; border-radius: 10px; } .GreenBoxWide { margin-top: -8px; background-color: #D7E4BD; padding: 20px; width: 82%; borderradius:
10px; } .title { font-size: 1.2em; font-weight: bold; } .normal { font-size: 12px; font-weight: normal; } .subtext { font-size: 0.8em; }
.icon { float: left; padding-right: 15px; } .floatRight { float: right; } Working in partnership with

Does anyone have any idea why this may be happening? Have I missed a setting somewhere? Here is my code for the converter:

public class ConvertToPDF
{
private bool ConvertComplete { get; set; }

    public byte[] HtmlToPdf(string html)
    {
        using (var toPdf = GetConverter())
        {
            toPdf.GlobalSettings.Margin.Top = "1cm";
            toPdf.GlobalSettings.Margin.Bottom = "1cm";
            toPdf.GlobalSettings.Margin.Left = "1cm";
            toPdf.GlobalSettings.Margin.Right = "1cm";

            toPdf.ObjectSettings.Web.EnablePlugins = false;
            toPdf.ObjectSettings.Web.EnableJavascript = false;
            toPdf.ObjectSettings.Load.Proxy = "none";

            byte[] pdfBytes = toPdf.Convert(html);

            if (pdfBytes != null && ConvertComplete)
            {
                return pdfBytes;
            }
            else
            {
                return null;
            }
        }
    }

    private MultiplexingConverter GetConverter()
    {
        var obj = new MultiplexingConverter();
        obj.Finished += new EventHandler<EventArgs<bool>>(obj_Finished);

        return obj;
    }

    void obj_Finished(object sender, EventArgs<bool> e)
    {
        ConvertComplete = true;
    }   
}

Thanks in advance.

Page size?

I was wondering how do I set the page width/size?

WkhtmlToPDF (according to http://madalgo.au.dk/~jakobt/wkhtmltoxdoc/wkhtmltopdf-0.9.9-doc.html)

Exposes the option –-page-width

Auto-deploy of the native dll on linux 64 : System.DllNotFoundException: wkhtmltox0

Hi,
I'm trying to use the library on a mod_mono / apache project on debian linux 64 bits. But i ran into this error :

System.DllNotFoundException: wkhtmltox0
at (wrapper managed-to-native) WkHtmlToXSharp.NativeCalls:wkhtmltopdf_version ()
at WkHtmlToXSharp.NativeCalls.WkHtmlToPdfVersion () [0x00000] in :0
at WkHtmlToXSharp.WkHtmlToPdfConverter..ctor () [0x00000] in :0
at WebDevCore.PdfExport.GetPdfBytesFromHtml (System.String HTMLContent, Double margin) [0x00000] in :0
at JdV5AdminWeb.print.ProcessRequest (System.Web.HttpContext context) [0x00000] in :0
at System.Web.HttpApplication+c__Iterator6.MoveNext () [0x00000] in :0
at System.Web.HttpApplication.Tick () [0x00000] in :0

It works well on my development enviroment ( windows / visual studio dev. web server ), and the code for deploying the dll seems to be called correctly. i got this on the log :

Deploying embedded libwkhtmltox0.so to /tmp/www-data-temp-aspnet-0/84dd945b/assembly/shadow/fb474576/ba29ae1b_416eeb6d_00000001

and
Deployed /tmp/www-data-temp-aspnet-0/84dd945b/assembly/shadow/fb474576/ba29ae1b_416eeb6d_00000001/libwkhtmltox0.so with md5sum: 4F913853E31C3F4A9F3B6B1338E2AD8C.

The file does exists (is really created) in the above folder, and does have a +x flag on it.

Am i doing something wrong ?

System.BadImageFormatException thrown when disposing MultiplexingConverter...

This exception was thrown several times on Windows 7 SP1 or Windows 10...

System.BadImageFormatException: 试图加载格式不正确的程序。 (Exception from HRESULT: 0x8007000B)

at WkHtmlToXSharp.NativeCalls.wkhtmltopdf_deinit()
at WkHtmlToXSharp.WkHtmlToPdfConverter.Dispose(Boolean disposing)
at WkHtmlToXSharp.WkHtmlToPdfConverter.Finalize()

I could not reproduce it myself though.

Observed difference in output between MultiplexerConverter and WkHtmlToPdfConverter

Both screenshots is output from the same html report.
The only difference in the calling code is which class is new'ed up as the responsible IHtmlToPdfConverter
Seems to me like a bug in WkHtmlToPdfConverter?
I'm using MultiplexerConverter so no trouble for my, just wanted to report it since I saw it.

Thanks for making this!

ApartmentState.STA in .net core linux

in this line throw PlatformNotSupportedException (.net core, linux x64)

WkHtmlToXSharp/WkHtmlToXSharp/DelegateQueue/DelegateQueue.cs

Line 138 in 390ed10

delegateThread.SetApartmentState(ApartmentState.STA);

please change to this line:
delegateThread.TrySetApartmentState(ApartmentState.STA);

letter-spacing strange. The letters are very close

When I convert HTML to PDF the the letters are close and affect the reading.
Can I fix it?

Explain please the following test case: CanHandleAuthFailure

Now this test case is not run (ignored) with the following attribute:
//[Ignore("This test requires (still to be released) wkhtmltopdf v0.12+")]
I have a couple of questions:

What is expected result for this case? Why it is considered that tmp should be not null?
What functionality fo v0.12 is necessary for this case to work correctly.

Thank you all in advance.

Maintenance status

Hi Pablo, I noticed this project hasn't been updated recently and wanted to know how much you intend to keep this project (and the associated NuGet package) up to date with the original library.

One file from multiple strings

Hello. I have list of strings . Each of them contains html. I want to merge them into one PDF. Could u provide me the best way for doing it ?

Poor performance from ASP.NET MVC application

Hi,

I encounter a poor perfomrance issue (1 minute for PDF generation of simple html page, no concurrent requests) while using WkHTMLToXSharp from whitin a ASP.NET MVC 3 application and .NET framework 4.0. I'm using a MultiplexingConverter like in the example below :

var wk = new MultiplexingConverter();
wk.GlobalSettings.Margin.Top = "0cm";
wk.GlobalSettings.Margin.Bottom = "0cm";
wk.GlobalSettings.Margin.Left = "0cm";
wk.GlobalSettings.Margin.Right = "0cm";

wk.ObjectSettings.Web.EnablePlugins = false;
wk.ObjectSettings.Web.EnableJavascript = false;
wk.ObjectSettings.Page = url;

wk.ObjectSettings.Load.Proxy = "none";

Do you have any hints, what's going on or how can I debug/improve it ?

Thanks,

Wrong Common.Logging version in latest nuget package

Hi,

There is a problem in your latest nuget package 1.1.23.22. In this package's Dependencies it says and installs Common.Logging 2.0.0 but inside dll you are using 2.1.0. Can you update dependency please. Because any time someone downloads this package, they will get the same error.

Adding Cookies support

I was trying to add cookies and I noticed the original project has cookies in Load settings.
I tried to tackle it but failed when it came to passing values into the QList of QPairs that is the cookies in the original code.
Please help

Unable to load DLL 'wkhtmltox0'

"Unable to load DLL 'wkhtmltox0': The specified module could not be found. (Exception from HRESULT: 0x8007007E)"
I have added it on the bin file manually. I also have tried both x86 and 64 bit. And have build the project on either one or the other instead of the Any CPU. Any other suggestions?

Question regarding usage of MultiplexingConverter

Hi!
We're trying to replace existing (buggy) WkHtml-integration with WkHtmlToXSharp. We're using it to generate reports of many different kinds, each report-generation running in a seperate thread with a prioritized queue in front.

I'm a bit confused, by the following (probably misunderstood) things, that maybe you can clear up:

MultiplexingConverter can be re-used across streams for "concurrent-ish" generation
report-specific options (GlobalSettings and ObjectSettings) cannot be injected on the Convert(...) method, but only set on the properties on the MultiplexingConverter
... This means it becomes a race-condition for pdf-generation for a given report to use the correct Global-/Object-settings
I could instantiate a seperate WkHtmlToPdfConverter instance per report, but I read in another issue that repeated instantiation incurs a performance-hit and should be avoided

Any input is appreciated - thanks!

CallbackOnCollectedDelegate MDA

Sometimes when a system is under heavy load CallbackOnCollectedDelegate occur and produce NullReferenceException. The reason is that in the method WkHtmlToPdfConverter._Convert native calls that are invoked in the finally block (wkhtmltopdf_set_error_callback (converter, null), etc.)
do not have time to work on the side of c ++ library before the garbage collector destroys corresponding delegates objects. In particular case it tries to call wkhtmltopdf_int_callback after completion of the WkHtmlToPdfConverter._Convert method that resulted in an error.

My virus scanner found a virus in project files.

I tried downloading and running example project to see how it works and I got the following message from my virus scanner.

/******************************/
Category: Trojan
Description: This program is dangerous and executes commands from an attacker.
Recommended action: Remove this software immediately.
Items:
file:C:\Users\name\Desktop\WkHtmlToXSharp-master\Packages\NuGet.CommandLine.1.6.0\tools\NuGet.exe
Get more information about this item online.