DinkToPdf
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rdvojmoc
Unable to load DLL 'libwkhtmltox' or one of its dependencies: The specified module could not be found.
When building locally I keep getting Unable to load DLL 'libwkhtmltox' or one of its dependencies: The specified module could not be found.
My function looks like this.
public class Html2Pdf
{
[FunctionName("Html2Pdf")]
public async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
ILogger log)
{
log.LogInformation("C# HTTP trigger function processed a request.");
var converter = new SynchronizedConverter(new PdfTools());
var doc = new HtmlToPdfDocument()
{
GlobalSettings = {
ColorMode = ColorMode.Color,
Orientation = Orientation.Landscape,
PaperSize = PaperKind.A4Plus,
},
Objects = {
new ObjectSettings() {
PagesCount = true,
HtmlContent = @"Lorem ipsum dolor sit amet, consectetur adipiscing elit. In consectetur mauris eget ultrices iaculis. Ut odio viverra, molestie lectus nec, venenatis turpis.",
WebSettings = { DefaultEncoding = "utf-8" },
HeaderSettings = { FontSize = 9, Right = "Page [page] of [toPage]", Line = true, Spacing = 2.812 }
}
}
};
try
{
converter.Convert(doc);
}
catch (Exception e)
{
Console.WriteLine(e);
throw;
}
return new OkObjectResult("ok");
}
}
In startup.cs
namespace Html2Pdf
{
public class Startup : FunctionsStartup
{
public override void Configure(IFunctionsHostBuilder builder)
{
if (builder == null)
throw new ArgumentException(nameof(builder));
}
public void ConfigureServices(IServiceCollection services)
{
// Add converter to DI
services.AddSingleton(typeof(IConverter), new SynchronizedConverter(new PdfTools()));
}
}
}
Check the properties of the libwkhtmltox files. If 'Copy to Put Directory' is set to 'None', set it to 'Copy always' or 'Copy is newer'
Try adding this package: https://www.nuget.org/packages/DinkToPdfCopyDependencies
Add library files to directory wkhtmltox in project then:
Add to *.csproj
<ItemGroup>
<Folder Include="wkhtmltox" />
</ItemGroup>
<Target Name="CopyRequiredLibrary" AfterTargets="AfterBuild">
<Copy SourceFiles="wkhtmltox/libwkhtmltox.dll" DestinationFolder="$(OutDir)" />
<Copy SourceFiles="wkhtmltox/libwkhtmltox.dylib" DestinationFolder="$(OutDir)" />
<Copy SourceFiles="wkhtmltox/libwkhtmltox.so" DestinationFolder="$(OutDir)" />
</Target>
<Target Name="CopyRequiredLibraryOnPublish" AfterTargets="Publish">
<Copy SourceFiles="wkhtmltox/libwkhtmltox.dll" DestinationFolder="$(PublishDir)" />
<Copy SourceFiles="wkhtmltox/libwkhtmltox.dylib" DestinationFolder="$(PublishDir)" />
<Copy SourceFiles="wkhtmltox/libwkhtmltox.so" DestinationFolder="$(PublishDir)" />
</Target>
Now all files will be added to proper location
I am facing the exact same issue :
My code:
Console.WriteLine("Starting Pechkin"); var converter = new SynchronizedConverter(new PdfTools()); Console.WriteLine("Converter");
var doc = new HtmlToPdfDocument()
{
GlobalSettings = {
ColorMode = ColorMode.Color,
Orientation = Orientation.Landscape,
PaperSize = PaperKind.A4Plus,
},
Objects = {
new ObjectSettings() {
PagesCount = true,
HtmlContent = @"<!DOCTYPE html> <html> <body> <h1>My First Heading</h1> <p>My first paragraph. ا </p> </body> </html>",
WebSettings = { DefaultEncoding = "utf-8" },
HeaderSettings = { FontSize = 9, Right = "Page [page] of [toPage]", Line = true, Spacing = 2.812 }
}
}
};
Console.WriteLine("Document");
byte[] pdf = converter.Convert(doc);
Console.WriteLine("Converted");
Console.WriteLine("Done with bytes length: " + pdf.Length);
I tried adding the above targets to my .csproj but it says - Could not copy the file "wkhtmltox/libwkhtmltox.dll" because it was not found.
Do we need to install wkhtmltopdf?
Quick question, the library says it's a wrapper over wkhtltopdf, if we end up installing/adding wkhtltopdf dlls ourselves then how come this library is providing any benefit? At the end of the day, I want to simply deploy my code to a container and don't want to get into those complexities of adding/managing wkhtmltopdf dlls.
Any help on this?
