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USING IRONPDF

PDF API C# (Code Example Tutorial)

1. Introduction

Adobe's Portable Document Format (PDF) is essential for various operations in many companies, including generating documents and invoices. Developers also use it to meet client requirements. Libraries have simplified the process of creating PDFs. When choosing a library, consider aspects such as build, read, and conversion capabilities.

2. IronPDF Features

IronPDF is a robust PDF converter and API library that allows developers to generate, read, and manipulate PDF documents. It uses the Chrome engine to convert HTML to PDF and supports a variety of web components and .NET applications. It enables the creation of visually appealing PDFs using HTML5, JavaScript, CSS, and images, and includes a powerful HTML-to-PDF translator and an independent PDF conversion engine.

3. Create PDF Documents from URLs

With the assistance of the IronPDF API library, generating PDF files becomes very easy by creating an HTML file from a URL and converting it to a PDF file using the built-in Chrome browser in IronPDF.

The methods listed below make it simple to create PDF documents with just a few lines of code:

// Instantiate the ChromePdfRenderer object from IronPdf
IronPdf.ChromePdfRenderer renderer = new IronPdf.ChromePdfRenderer(); 

// Render the contents of a URL as a PDF document
var pdf = renderer.RenderUrlAsPdf("https://www.google.co.in/");

// Save the rendered PDF document to a specified file path
pdf.SaveAs("result.pdf");
// Instantiate the ChromePdfRenderer object from IronPdf
IronPdf.ChromePdfRenderer renderer = new IronPdf.ChromePdfRenderer(); 

// Render the contents of a URL as a PDF document
var pdf = renderer.RenderUrlAsPdf("https://www.google.co.in/");

// Save the rendered PDF document to a specified file path
pdf.SaveAs("result.pdf");
' Instantiate the ChromePdfRenderer object from IronPdf
Dim renderer As New IronPdf.ChromePdfRenderer()

' Render the contents of a URL as a PDF document
Dim pdf = renderer.RenderUrlAsPdf("https://www.google.co.in/")

' Save the rendered PDF document to a specified file path
pdf.SaveAs("result.pdf")
$vbLabelText   $csharpLabel

According to the information above, the RenderUrlAsPdf method can be used to convert the link into a document by providing the link and the save location.

PDF API C# (Code Example Tutorial), Figure 1: The PDF file generated from a URL The PDF file generated from a URL

4. Create a PDF from HTML Strings

The IronPDF API library makes it easy to convert HTML strings into PDF files. Below is an example code for converting HTML strings into documents, and it allows the translation of any HTML tag into PDF files.

// Use the ChromePdfRenderer to convert an HTML string to a PDF
IronPdf.ChromePdfRenderer().RenderHtmlAsPdf("Hello world!!").SaveAs("result.pdf");
// Use the ChromePdfRenderer to convert an HTML string to a PDF
IronPdf.ChromePdfRenderer().RenderHtmlAsPdf("Hello world!!").SaveAs("result.pdf");
' Use the ChromePdfRenderer to convert an HTML string to a PDF
IronPdf.ChromePdfRenderer().RenderHtmlAsPdf("Hello world!!").SaveAs("result.pdf")
$vbLabelText   $csharpLabel

This example code demonstrates how to convert an unlimited HTML text using RenderHtmlAsPdf, then save the document using the SaveAs method and the whole process is completed in just a matter of seconds.

PDF API C# (Code Example Tutorial), Figure 2: A PDF file generated from an HTML string A PDF file generated from an HTML string

5. Reading PDF Documents

With the help of the IronPDF API library, it is possible to read and extract data from existing PDF documents. The code below shows an example of how to do this:

// Load an existing PDF file into a PdfDocument object
var pdfDocument = IronPdf.PdfDocument.FromFile("result.pdf");

// Extract all text from the PDF document into a string
string AllText = pdfDocument.ExtractAllText();
// Load an existing PDF file into a PdfDocument object
var pdfDocument = IronPdf.PdfDocument.FromFile("result.pdf");

// Extract all text from the PDF document into a string
string AllText = pdfDocument.ExtractAllText();
' Load an existing PDF file into a PdfDocument object
Dim pdfDocument = IronPdf.PdfDocument.FromFile("result.pdf")

' Extract all text from the PDF document into a string
Dim AllText As String = pdfDocument.ExtractAllText()
$vbLabelText   $csharpLabel

In this code, the FromFile function is used to read the PDF from an existing file and convert it into a PdfDocument object. This object can be used to access the text and images present on the PDF pages. The ExtractAllText method can be used to create a string containing every word on the PDF pages.

For more information on how to use the IronPDF API library, refer to the code tutorials and documentation.

6. Conclusion

The IronPDF library provides a free license for development, and different licenses are available for purchase for use in a production environment based on the developer's needs. The Lite package has a starting price of $749 and does not require any ongoing fees. The licenses offer redistribution options for SaaS and OEM and come with a permanent license, a 30-day money-back guarantee, and a year of product support and updates. They are suitable for development, staging, and production and require a one-time purchase. Moreover, IronPDF provides additional complimentary time-limited licenses. IronPDF also offers free licenses for redistribution coverage.

For more information on IronPDF's complete pricing and licensing details, please visit the IronPDF licensing details page.

Frequently Asked Questions

How can I convert HTML to PDF in C#?

You can use IronPDF's RenderHtmlAsPdf method to convert HTML strings into PDFs. You can also convert HTML files into PDFs using the RenderHtmlFileAsPdf method.

What are the main features of a PDF library?

IronPDF allows developers to generate, read, and manipulate PDF documents. It supports converting HTML, image files, ASPX pages, and Razor/MVC views into PDFs. Additionally, it offers tools for creating interactive PDFs, editing forms, extracting text and images, and more.

How do I create a PDF from a URL using C#?

You can create a PDF from a URL using IronPDF by instantiating the ChromePdfRenderer object and using its RenderUrlAsPdf method. This allows the contents of a URL to be rendered as a PDF document.

Can I convert CSS files to PDF using a PDF library?

Yes, IronPDF supports converting CSS files into PDF documents. You can include CSS styles when rendering HTML to ensure the PDF output matches the desired design.

How can I extract text from a PDF in C#?

To extract text from a PDF in C#, load the PDF into a PdfDocument object using the FromFile method, and then use the ExtractAllText method to retrieve text data from the document.

What licensing options are available for PDF libraries?

IronPDF offers a free license for development and various paid licenses for production use, including options for SaaS and OEM redistribution. These licenses come with a one-time purchase, permanent license, a 30-day money-back guarantee, and a year of product support and updates.

Can I handle password-protected PDFs with a PDF library?

Yes, IronPDF can access password-protected PDF files by requesting the username and password, allowing you to read and edit these documents.

Does a PDF library support creating interactive PDF documents?

Yes, IronPDF supports the creation of interactive PDF documents, including editing forms, adding bookmarks, watermarks, and custom headers and footers.

What input formats are supported for PDF conversion?

IronPDF supports converting image files, HTML5 documents, ASPX pages, Razor/MVC views, and CSS files into PDF documents.

How can I create PDFs from URLs using an API?

Using the IronPDF API, you can easily create PDFs from URLs by using the built-in Chrome browser to render the contents of a URL as a PDF document with just a few lines of code.

Chipego
Software Engineer
Chipego has a natural skill for listening that helps him to comprehend customer issues, and offer intelligent solutions. He joined the Iron Software team in 2023, after studying a Bachelor of Science in Information Technology. IronPDF and IronOCR are the two products Chipego has been focusing on, but his knowledge of ...Read More