Angular.JS to PDF

Utilize the fromUrl method to render a PDF document from a URL with IronPDF. Rendering occurs in an instance, which can sometimes lead to issues with loading JavaScript or fonts. To ensure that JavaScript and fonts load correctly, it is advisable to use the waitFor class and specify an appropriate wait type, as well as a maximum wait time.

The consequences of improperly loaded JavaScript or fonts may include:

• Invisible text content
• Incorrectly displayed content

Here is an example code snippet demonstrating how to render a PDF using IronPDF with proper waiting mechanisms:

using IronPdf;
using System;

class Program
{
    static void Main()
    {
        // Define the URL of the web page to convert to PDF
        string url = "http://example.com";

        // Initialize an instance of the HtmlToPdf renderer
        var Renderer = new HtmlToPdf();

        // Use the fromUrl method to create a PDF from the specified URL
        // This method renders the webpage to a PDF asynchronously
        var pdfDocument = Renderer.RenderUrlAsPdf(url);

        // Specify a waiting mechanism to ensure JavaScript and fonts are fully loaded
        // Wait up to 10 seconds; this can be adjusted based on the complexity of the webpage
        pdfDocument.WaitForNetworkIdle(TimeSpan.FromSeconds(10));

        // Save the rendered PDF to a file on disk
        pdfDocument.SaveAs("output.pdf");

        Console.WriteLine("PDF has been rendered and saved successfully.");
    }
}

using IronPdf;
using System;

class Program
{
    static void Main()
    {
        // Define the URL of the web page to convert to PDF
        string url = "http://example.com";

        // Initialize an instance of the HtmlToPdf renderer
        var Renderer = new HtmlToPdf();

        // Use the fromUrl method to create a PDF from the specified URL
        // This method renders the webpage to a PDF asynchronously
        var pdfDocument = Renderer.RenderUrlAsPdf(url);

        // Specify a waiting mechanism to ensure JavaScript and fonts are fully loaded
        // Wait up to 10 seconds; this can be adjusted based on the complexity of the webpage
        pdfDocument.WaitForNetworkIdle(TimeSpan.FromSeconds(10));

        // Save the rendered PDF to a file on disk
        pdfDocument.SaveAs("output.pdf");

        Console.WriteLine("PDF has been rendered and saved successfully.");
    }
}

Imports IronPdf
Imports System

Friend Class Program
	Shared Sub Main()
		' Define the URL of the web page to convert to PDF
		Dim url As String = "http://example.com"

		' Initialize an instance of the HtmlToPdf renderer
		Dim Renderer = New HtmlToPdf()

		' Use the fromUrl method to create a PDF from the specified URL
		' This method renders the webpage to a PDF asynchronously
		Dim pdfDocument = Renderer.RenderUrlAsPdf(url)

		' Specify a waiting mechanism to ensure JavaScript and fonts are fully loaded
		' Wait up to 10 seconds; this can be adjusted based on the complexity of the webpage
		pdfDocument.WaitForNetworkIdle(TimeSpan.FromSeconds(10))

		' Save the rendered PDF to a file on disk
		pdfDocument.SaveAs("output.pdf")

		Console.WriteLine("PDF has been rendered and saved successfully.")
	End Sub
End Class

Explanation of the Code

• Import IronPdf Namespace: The code starts by importing the IronPdf and System namespaces. IronPdf is necessary for PDF rendering, and System provides basic functionalities such as using the TimeSpan class.

• Main Method: The Main method is the entry point of the program.

• URL Specification: The variable url holds the URL of the web page that you wish to convert to a PDF document.

• Initialize Renderer: An instance of the HtmlToPdf renderer is created using new HtmlToPdf(). This instance is used to perform the conversion.

• Render URL to PDF: The RenderUrlAsPdf method is called on the Renderer instance to convert the URL's HTML content into a PDF document.

• Ensure Full Page Load: To handle asynchronous loading of resources like JavaScript and fonts, WaitForNetworkIdle is used. This method waits until network activity subsides, with a maximum wait time of 10 seconds specified using TimeSpan.FromSeconds(10). This is crucial for pages that heavily rely on dynamic content or fonts.

• Save PDF: The resulting PDF is then saved to a file named "output.pdf" using the SaveAs method.

• Status Message: Finally, upon successful saving of the PDF, a confirmation message is printed to the console.

This approach ensures that the rendered PDF is complete and accurate, with all JavaScript and fonts properly loaded.