using IronPdf; // Instantiate Renderer var renderer = new ChromePdfRenderer(); // Create a PDF from a HTML string using C# var pdf = renderer.RenderHtmlAsPdf("<h1>Hello World</h1>"); // Export to a file or Stream pdf.SaveAs("output.pdf"); // Advanced Example with HTML Assets // Load external html assets: Images, CSS and JavaScript. // An optional BasePath 'C:\site\assets\' is set as the file location to load assets from var myAdvancedPdf = renderer.RenderHtmlAsPdf("<img src='icons/iron.png'>", @"C:\site\assets\"); myAdvancedPdf.SaveAs("html-with-assets.pdf");

using IronPdf; using System; // Step 1. Creating a PDF with editable forms from HTML using form and input tags // Radio Button and Checkbox can also be implemented with input type 'radio' and 'checkbox' const string formHtml = @" <html> <body> <h2>Editable PDF Form</h2> <form> First name: <br> <input type='text' name='firstname' value=''> <br> Last name: <br> <input type='text' name='lastname' value=''> <br> <br> <p>Please specify your gender:</p> <input type='radio' id='female' name='gender' value= 'Female'> <label for='female'>Female</label> <br> <br> <input type='radio' id='male' name='gender' value='Male'> <label for='male'>Male</label> <br> <br> <input type='radio' id='non-binary/other' name='gender' value='Non-Binary / Other'> <label for='non-binary/other'>Non-Binary / Other</label> <br> <p>Please select all medical conditions that apply:</p> <input type='checkbox' id='condition1' name='Hypertension' value='Hypertension'> <label for='condition1'> Hypertension</label><br> <input type='checkbox' id='condition2' name='Heart Disease' value='Heart Disease'> <label for='condition2'> Heart Disease</label><br> <input type='checkbox' id='condition3' name='Stoke' value='Stoke'> <label for='condition3'> Stoke</label><br> <input type='checkbox' id='condition4' name='Diabetes' value='Diabetes'> <label for='condition4'> Diabetes</label><br> <input type='checkbox' id='condition5' name='Kidney Disease' value='Kidney Disease'> <label for='condition5'> Kidney Disease</label><br> </form> </body> </html>"; // Instantiate Renderer var renderer = new ChromePdfRenderer(); renderer.RenderingOptions.CreatePdfFormsFromHtml = true; renderer.RenderHtmlAsPdf(formHtml).SaveAs("BasicForm.pdf"); // Step 2. Reading and Writing PDF form values. var FormDocument = PdfDocument.FromFile("BasicForm.pdf"); // Set and Read the value of the "firstname" field var FirstNameField = FormDocument.Form.GetFieldByName("firstname"); FirstNameField.Value = "Minnie"; Console.WriteLine("FirstNameField value: {0}", FirstNameField.Value); // Set and Read the value of the "lastname" field IronPdf.Forms.FormField LastNameField = FormDocument.Form.GetFieldByName("lastname"); LastNameField.Value = "Mouse"; Console.WriteLine("LastNameField value: {0}", LastNameField.Value); FormDocument.SaveAs("FilledForm.pdf");

Published January 27, 2023

How to Download PDF From URL in C# (Step-By-Step) Tutorial

Are you wondering how to create a PDF file using a URL or download a PDF file using the C# .NET programming language? In this article, we will discuss how you can do just this using a market-leading .NET library called IronPDF. IronPDF lets you download PDF files and convert any HTML page to a PDF file.

How to Download PDF From URL in C#

Install C# library to download PDF from URL
Instantitate ChromePdfRenderer class to have access to its methods
Use RenderUrlAsPdf method in C# to generate PDF from URL
Specify file path to SaveAs method to export the PDF
Check the generated PDF from URL

IronPDF

IronPDF is a powerful HTML-to-PDF conversion API. IronPDF offers a comprehensive set of tools for converting HTML sites in the .NET and .NET Core Frameworks. IronPDF allows developers to create, alter, and retrieve PDFs in .NET projects. Using IronPDF, developers can easily produce and manipulate high-fidelity PDFs from HTML pages.

Creating PDF files using IronPDF is easy and efficient, thereby reducing the workload on developers.

To get started with IronPDF, all you need is Visual Studio and C# installed on your system. Follow the steps in this easy step-by-step article to install IronPDF and to get started with working with PDFs.

1. Creating a New Project in Visual Studio

Open the Visual Studio IDE.

Go to the File menu in Visual Studio after starting it up. Select "New Project" then Console Application.

In the relevant text box, type the project name and choose the path. Then, click the Create button. Select the required .NET Framework, as in the screenshot below:

When a new window appears, select the target framework and click on Create.

The main Program.cs file will now open.

2. Install the IronPDF C# Library

The IronPDF library can be downloaded and installed in many ways. We will discuss three of them:

Using the Visual Studio NuGet Package Manager
Using the Visual Studio Command-Line
Direct Download from the NuGet webpage

2.1. Using the Visual Studio NuGet Package Manager

The NuGet Package Manager option is available in Visual Studio to install the package directly into the solution. The below screenshot shows how to open it.

This opens a search box that displays a list of the package libraries available on NuGet. As shown in the screenshot below, we need to search for the keyword "IronPDF" in the package manager search field.

Select the IronPDF package (first option as shown above) and click Install to add the package to our solution.

2.2. Using the Visual Studio Command-Line

In the Visual Studio menu, go to Tools, move the cursor to NuGet Package Manager and click on Package Manager Console.

Package Manager Console will appear at the bottom of the screen. Just write the following command and press enter, and IronPDF will install.

Install-Package IronPDF

2.3 Direct Download from the NuGet webpage

The third way is to download the NuGet package directly from the website.

Navigate to the link "https://www.nuget.org/packages/IronPdf/"
Select the download package option from the menu on the right-hand side.
Double-click the downloaded package; it will be installed automatically.
Now reload the solution and begin using it in the project.

3. Download a PDF from a URL using IronPDF

You can easily download a PDF document from a URL with just a few lines of code using IronPDF. URL to PDF conversion has a lot of applications, such as saving or sending UI designs, and record-keeping to name a few. Using IronPDF's URL to PDF file conversion takes just a few seconds, as it uses the world's number one rendering engine to render HTML.

In this tutorial, we will demonstrate IronPDF's precision and efficiency with two different websites that vary in size and complexity.

3.1. Downloading a PDF from the URL of an eCommerce Website

IronPDF can render text images and descriptions of any eCommerce website from a URL with just a few lines of code.

To perform this conversion, copy the URL of your favorite eCommerce website and execute the project with code similar to what's given below:

using IronPdf;

// Instantiate Renderer
var Renderer = new IronPdf.ChromePdfRenderer();

// Create a PDF from a URL or local file path
var pdf = Renderer.RenderUrlAsPdf("https://www.daraz.pk/#hp-flash-sale");

// Export to a file or Stream
pdf.SaveAs("url.pdf");

using IronPdf;

// Instantiate Renderer
var Renderer = new IronPdf.ChromePdfRenderer();

// Create a PDF from a URL or local file path
var pdf = Renderer.RenderUrlAsPdf("https://www.daraz.pk/#hp-flash-sale");

// Export to a file or Stream
pdf.SaveAs("url.pdf");

Imports IronPdf

' Instantiate Renderer
Private Renderer = New IronPdf.ChromePdfRenderer()

' Create a PDF from a URL or local file path
Private pdf = Renderer.RenderUrlAsPdf("https://www.daraz.pk/#hp-flash-sale")

' Export to a file or Stream
pdf.SaveAs("url.pdf")

VB C#

Output for the given sample is below. Compare this image with how it appears in a web browser:

3.2. Downloading a PDF from the URL of a Blog Website

Blog websites have a lot of small details that are important for their UI. Ideally, these details should be preserved when converting blog pages to PDFs.

The next example will present the results of converting a Wikipedia article to PDF.

using IronPdf;

// Instantiate Renderer
var Renderer = new IronPdf.ChromePdfRenderer();

// Create a PDF from a URL or local file path
var pdf = Renderer.RenderUrlAsPdf("https://en.wikipedia.org/wiki/URL");

// Export to a file or Stream
pdf.SaveAs("url.pdf");

using IronPdf;

// Instantiate Renderer
var Renderer = new IronPdf.ChromePdfRenderer();

// Create a PDF from a URL or local file path
var pdf = Renderer.RenderUrlAsPdf("https://en.wikipedia.org/wiki/URL");

// Export to a file or Stream
pdf.SaveAs("url.pdf");

Imports IronPdf

' Instantiate Renderer
Private Renderer = New IronPdf.ChromePdfRenderer()

' Create a PDF from a URL or local file path
Private pdf = Renderer.RenderUrlAsPdf("https://en.wikipedia.org/wiki/URL")

' Export to a file or Stream
pdf.SaveAs("url.pdf")

VB C#

When creating the PDF of blog pages, internal links should not be broken. PDFs created using IronPDF maintain all links correctly.

4. Conclusion

In this tutorial, we have discussed how to create PDFs from URLs using IronPDF. IronPDF makes it very simple to convert HTML from existing URLs to PDF documents. JavaScript, images, forms, and links are all extremely well-supported; the output is almost identical to the original and keeps all formatting and links.

For more examples on using IronPDF, please read our URL to PDF Code Example. To know more about the features of IronPDF offers, please visit the Features page.

More information about IronPDF licensing for Free and Commercial projects is available on the Licensing page. Purchase Iron Software's entire suite of five libraries for a deeply discounted price: five libraries for the cost of two libraries.

You can download the software product from this link.