Getting Started with EvoPdf Chromium on Windows

EvoPdf Chromium for .NET is a library that can be easily integrated into any type of .NET application to convert web pages and HTML strings to PDF or to image on Windows platforms.

The HTML to PDF converter component of the library uses a rendering engine based on Chromium, which can render all modern HTML, CSS and JavaScript content in conformance with the latest standards.

EvoPdf Chromium for .NET can run natively on Windows 64-bit operating systems. The product runtime is compatible with Windows 10, Windows Server 2016 and the later versions of the Windows 64-bit OS.

The .NET library targets the .NET Standard 2.0 and therefore it can be used in any .NET Core or .NET Framework application which is compatible with this standard.

The product can run on Windows without installing anything and without any prior configuration of the operating system. The steps necessary to use the library in your own application are detailed below.

The software is also fully compatible with Azure App Service and Azure Functions on Windows and the installation instructions for these platforms can be found in a separate documentation section.

Create a new .NET project in Visual Studio and use the NuGet Package Manager from Visual Studio to add a reference to the EvoPdf.Chromium.Windows package from NuGet.

After the NuGet package has been installed, at the top of your C# source file add the using EvoPdf.Chromium; statement to include the EvoPdf.Chromium namespace in your application code and to make the library API available to your application.

// add this using statement at the top of your C# file
using EvoPdf.Chromium;

You are now ready to use the library to convert web pages and HTML code to PDF or to Image using EvoPdf Chromium for .NET.

With the code below you can convert a HTML string to a PDF document in a memory buffer and then save the data from buffer into a file.

// create the converter object in your code where you want to run conversion
HtmlToPdfConverter converter = new HtmlToPdfConverter();

// convert a HTML string to a memory buffer
byte[] htmlToPdfBuffer = converter.ConvertHtml("<b>Hello World</b> from EVO PDF !", null);

// write the memory buffer to a PDF file
System.IO.File.WriteAllBytes("HtmlToMemory.pdf", htmlToPdfBuffer);

With the code below you can convert an URL to a PDF document in a memory buffer and then save the data from buffer into a file. The URL can also be a local file path prefixed by the 'file://' URI scheme.

// create the converter object in your code where you want to run conversion
HtmlToPdfConverter converter = new HtmlToPdfConverter();

// convert an URL to a memory buffer
string htmlPageURL = "http://www.evopdf.com";
byte[] urlToPdfBuffer = converter.ConvertUrl(htmlPageURL);

// write the memory buffer to a PDF file
System.IO.File.WriteAllBytes("UrlToMemory.pdf", urlToPdfBuffer);

With the code below you can convert in your ASP.NET Core applications a HTML string to a PDF document in a memory buffer and then send it for download to browser.

// create the converter object in your code where you want to run conversion
HtmlToPdfConverter converter = new HtmlToPdfConverter();

// convert a HTML string to a memory buffer
byte[] htmlToPdfBuffer = converter.ConvertHtml("<b>Hello World</b> from EVO PDF !", null);

FileResult fileResult = new FileContentResult(htmlToPdfBuffer, "application/pdf");
fileResult.FileDownloadName = "HtmlToPdf.pdf";
return fileResult;

With the code below you can convert in your ASP.NET Core applications an URL to a PDF document in a memory buffer and then send it for download to browser. The URL can also be a local file path prefixed by the 'file://' URI scheme.

// create the converter object in your code where you want to run conversion
HtmlToPdfConverter converter = new HtmlToPdfConverter();

// convert an URL to a memory buffer
string htmlPageURL = "http://www.evopdf.com";
byte[] urlToPdfBuffer = converter.ConvertUrl(htmlPageURL);

FileResult fileResult = new FileContentResult(urlToPdfBuffer, "application/pdf");
fileResult.FileDownloadName = "UrlToPdf.pdf";
return fileResult;

Everything should have been configured at this point and now you can run your application. Alternatively, you can follow the same instructions from this document to build and publish on Windows our demo application for ASP.NET.

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