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EvoPdf Classic · Azure client

HTML to PDF for Azure

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Classic v14.0 · Any platform, through the EVO PDF Server · Evaluate without registration — demo mode by default (watermarked) · Licensed with the HTML to PDF Converter license or EVO PDF Toolkit

$dotnet add package EvoPdf.Client

Any platform with .NET Framework 4.0+ or .NET Standard 2.0 (.NET 6–10) — the conversions run on an EVO PDF Server, on Windows

Program.csC#
using EvoPdfClient;

// conversions run on the EVO PDF Server
var converter = new HtmlToPdfConverter(
    "server.mycompany.com", 40000);
byte[] pdf = converter.ConvertUrl(
    "https://www.evopdf.com");
Classic API: EvoPdfClient namespace, one converter class, synchronous calls. API reference →
  • Windows, Linux and macOS
  • .NET Framework 4.0 – 4.8.1
  • .NET 6 → 10, .NET Standard 2.0
  • Azure App Service & Azure Functions
  • UWP, web, console and desktop applications
In detail

HTML to PDF for Azure — how it works

EVO PDF Client Library for .NET includes the HTML to PDF functionality and can be integrated in any type of Azure application for .NET to create PDF documents from HTML pages and strings, to convert HTML to images, HTML to SVG, to create new PDF document, to edit and merge existing PDF documents.

The client library offers in general the same features, quality and API as the regular EVO HTML to PDF Library for .NET and it can be used in Azure App Service and Azure Functions applications or any other type of .NET application deployed both on Windows and Linux.

EVO HTML to PDF Converter

EVO HTML to PDF Client for .NET is a component of the EVO PDF Client Library for .NET which can be easily integrated in any type of Azure application for .NET to convert HTML documents to PDF, raster images or SVG vector images.

The HTML to PDF is a powerful tool helping you to instantly create nicely formatted and easily maintainable PDF documents from HTML pages. The client library offers in general the same features, quality and API as the regular HTML to PDF Library for .NET and it can be used in Azure App Service and Azure Functions applications or any other type of .NET application deployed both on Windows and Linux.

Before starting to use the client library for .NET in your applications you first have to install the EVO PDF Server as described in the sections below. The converter offers full support for HTML5, CSS3, JavaScript, SVG, Web Fonts, page breaks control with CSS and from API, automatically repeated HTML table header and footer, live URLs and internal links, automatically generated hierarchical bookmarks and table of contents, PDF fillable forms, creation of digitally signed and password protected PDF documents.

EVO PDF Client Library for .NET includes also under the same namespace the API for the Word to PDF, Excel to PDF, PDF to Text, PDF to Image, PDF to HTML and PDF Images Extractor components from EVO PDF Toolkit.

Compatibility

EVO PDF Client Library for .NET is compatible with any platform which supports .NET Standard 2.0 and above or .NET Framework 4.0 and above, including:

  • .NET 10, 9, 8, 7, 6, 5, .NET Standard 2.0 and above
  • .NET Framework 4.8.1, 4.7.2, 4.6.1, 4.0 and above
  • Windows, Linux, macOS
  • Azure, Azure App Service and Azure Functions
  • Universal Windows Platform (UWP)
  • Web, Console and Desktop applications

EVO PDF Client Library

The evaluation package for .NET contains the product binaries and demo projects with full C# code for .NET Framework and .NET Core. There are separate demo projects for each major component of the library, including HTML to PDF, Word to PDF, Excel to PDF, PDF to Text, PDF to Image, PDF to HTML and PDF Images Extractor.

EVO PDF Client library for .NET is also available as a NuGet package that can be referenced directly in your Visual Studio project both for .NET Core and for .NET Framework.

EVO PDF Server

Before starting to use the EVO HTML to PDF Client for .NET in your applications you first have to install the EVO PDF Server. The server can be installed as Azure Cloud Service Worker Role, Azure Cloud Service Web Role, Azure Service Fabric Application, IIS ASP.NET Web Application or Windows Service.

EVO PDF Server package contains the server files and detailed installation instructions for each platform. You can start by installing EVO PDF Server as a Windows Service on the local development machine with default options. In this case the assigned IP address is 127.0.0.1 which is also the default IP address in the demo client applications from software package.

Getting Started

After the EVO PDF Server was installed, you are ready to use the EVO PDF Client Library for .NET in your applications. You can quickly start with the demo applications from the Demo folder of this package or you can integrate the library in your own project.

To start with your own project, first add a reference to EvoPdf.Client NuGet package. Alternatively you can reference the EvoPdfClient_NetCore.dll library directly from the Bin folder of the client library ZIP package for .NET Core or the EvoPdfClient.dll library from the Bin folder of the client library ZIP package for .NET Framework.

After the reference to library was added to your project you are now ready to start writing code to convert HTML to PDF in your .NET application

C# Code Samples

Copy the C# code lines from the section below to use the HTML to PDF Converter component to create a PDF document from a web page or from a HTML string and save the resulted PDF to a memory buffer for further processing, to a PDF file or send it to browser for download in ASP.NET Core applications.

The server IP address is assigned during server installation and it can be omitted from HtmlToPdfConverter constructor if the server was installed on the localhost IP address 127.0.0.1 . There are also variants of the constructor accepting an URL instead of IP address if the server was installed as a web service in Azure or in IIS.

At the top of your C# source file add the using EvoPdfClient; statement to make available the EVO PDF Client API for your .NET application.

At a glance

Component
EvoPdf Classic · Azure client
NuGet package
EvoPdf.Client
Namespace
EvoPdfClient
Main class
HtmlToPdfConverter
Runs on
Any platform with .NET 6–10 or .NET Framework 4.0+, through the EVO PDF Server (Windows)
Version
Classic v14.0
License
HTML to PDF Converter license or EVO PDF Toolkit; evaluation without registration
Documentation →
Sample.csC#
// add this using statement at the top of your C# file
using EvoPdfClient;

To convert a HTML string or an URL to a PDF file you can use the C# code below.

Sample.csC#
// create the converter object in your code where you want to run conversion
// change the serverIP value if the server was installed on a remote machine
string serverIP = "127.0.0.1";
HtmlToPdfConverter converter = new HtmlToPdfConverter(serverIP);

// convert the HTML string to a PDF file
converter.ConvertHtmlToFile("<b>Hello World</b> from EVO PDF !", null, "HtmlToFile.pdf");

// convert HTML page from URL to a PDF file
string htmlPageURL = "http://www.evopdf.com";
converter.ConvertUrlToFile(htmlPageURL, "UrlToFile.pdf");

To convert a HTML string or an URL to a PDF document in a memory buffer and then save it to a file you can use the C# code below.

Sample.csC#
// create the converter object in your code where you want to run conversion
// change the serverIP value if the server was installed on a remote machine
string serverIP = "127.0.0.1";
HtmlToPdfConverter converter = new HtmlToPdfConverter(serverIP);

// 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);

// 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);

To convert in your ASP.NET Core and ASP.NET MVC applications a HTML string or an URL to a PDF document in a memory buffer and then send it for download to browser you can use the C# code below.

Sample.csC#
// create the converter object in your code where you want to run conversion
// change the serverIP value if the server was installed on a remote machine
string serverIP = "127.0.0.1";
HtmlToPdfConverter converter = new HtmlToPdfConverter(serverIP);

// 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;

To convert in your ASP.NET Web Forms application a HTML string to a PDF document in a memory buffer and then send it for download to browser you can use the C# code below.

Sample.csC#
// create the converter object in your code where you want to run conversion
// change the serverIP value if the server was installed on a remote machine
string serverIP = "127.0.0.1";
HtmlToPdfConverter converter = new HtmlToPdfConverter(serverIP);

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

HttpResponse httpResponse = HttpContext.Current.Response;
httpResponse.AddHeader("Content-Type", "application/pdf");
httpResponse.AddHeader("Content-Disposition",
    String.Format("attachment; filename=HtmlToPdf.pdf; size={0}",
    htmlToPdfBuffer.Length.ToString()));
httpResponse.BinaryWrite(htmlToPdfBuffer);
httpResponse.End();
Installation

Install and run on Windows

The client assembly runs wherever .NET runs; install the EVO PDF Server (original or New Edition) on a Windows machine the clients can reach and point them at its address and port. For a single-package alternative on Linux and macOS, see EvoPdf Next.

Documentation

API reference and usage notes for the Azure client component.

Open the docs →

Getting started

The user guide chapters of the Classic documentation, with the C# code for each feature: options, merging, bookmarks, forms, security, deployment.

Read the guide →

Moving to Next?

EvoPdf Classic is the original engine, fully supported and licensed alongside EvoPdf Next. New projects should start with Next: Chromium rendering, Windows, Linux and macOS.

Migration guide →
Licensing

Perpetual licenses, updates and support included for a year

The HTML to PDF Converter license (450 USD Deployment / 1200 USD Company) covers the Classic and the Next converter; the EVO PDF Toolkit (650 / 1400 USD) covers every component on this site, Classic tools included. The Company License includes redistribution.

Pricing & licensing Next equivalent All downloads