The C# PDF Library

HTML to PDF Run

using IronPdf;

// Disable local disk access or cross-origin requests
Installation.EnableWebSecurity = true;

// 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");

HTML File to PDF Run

using IronPdf;

// Instantiate Renderer
var renderer = new ChromePdfRenderer();

// Create a PDF from an existing HTML file using C#
var pdf = renderer.RenderHtmlFileAsPdf("example.html");

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

URL to PDF Run

using IronPdf;

// Instantiate Renderer
var renderer = new ChromePdfRenderer();

// Create a PDF from a URL or local file path
var pdf = renderer.RenderUrlAsPdf("https://ironpdf.com/");

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

 ASPX To PDF (Advanced Settings)
﻿using IronPdf;

var PdfOptions = new IronPdf.ChromePdfRenderOptions()
{
    CreatePdfFormsFromHtml = true,
    EnableJavaScript = false,
    Title = "My ASPX Page Rendered as a PDF"
    //.. many more options available
};

AspxToPdf.RenderThisPageAsPdf(AspxToPdf.FileBehavior.Attachment, "MyPdfFile.pdf", PdfOptions);

 Images To PDF
using IronPdf;
using System.IO;
using System.Linq;

// One or more images as IEnumerable. This example selects all JPEG images in a specific 'assets' folder.
var imageFiles = Directory.EnumerateFiles("assets").Where(f => f.EndsWith(".jpg") || f.EndsWith(".jpeg"));

// Converts the images to a PDF and save it.
ImageToPdfConverter.ImageToPdf(imageFiles).SaveAs("composite.pdf");

// Also see PdfDocument.RasterizeToImageFiles() method to flatten a PDF to images or thumbnails

 Headers & Footers
using IronPdf;

// Initiate PDF Renderer
var renderer = new ChromePdfRenderer();

// Add a header to every page easily
renderer.RenderingOptions.FirstPageNumber = 1; // use 2 if a cover page  will be appended
renderer.RenderingOptions.TextHeader.DrawDividerLine = true;
renderer.RenderingOptions.TextHeader.CenterText = "{url}";
renderer.RenderingOptions.TextHeader.Font = IronSoftware.Drawing.FontTypes.Helvetica;
renderer.RenderingOptions.TextHeader.FontSize = 12;
renderer.RenderingOptions.MarginTop = 25; //create 25mm space for header

// Add a footer too
renderer.RenderingOptions.TextFooter.DrawDividerLine = true;
renderer.RenderingOptions.TextFooter.Font = IronSoftware.Drawing.FontTypes.Arial;
renderer.RenderingOptions.TextFooter.FontSize = 10;
renderer.RenderingOptions.TextFooter.LeftText = "{date} {time}";
renderer.RenderingOptions.TextFooter.RightText = "{page} of {total-pages}";
renderer.RenderingOptions.MarginTop = 25; //create 25mm space for footer

// Mergeable fields are:
// {page} {total-pages} {url} {date} {time} {html-title} & {pdf-title}

 PDF Forms
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.FindFormField("firstname");
FirstNameField.Value = "Minnie";
Console.WriteLine("FirstNameField value: {0}", FirstNameField.Value);

// Set and Read the value of the "lastname" field
var LastNameField = FormDocument.Form.FindFormField("lastname");
LastNameField.Value = "Mouse";
Console.WriteLine("LastNameField value: {0}", LastNameField.Value);

FormDocument.SaveAs("FilledForm.pdf");

 Responsive HTML to PDF
using IronPdf;
using IronPdf.Engines.Chrome;

// Instantiate Renderer
var renderer = new ChromePdfRenderer();

// Set the width of the Responsive Viewport in pixels
int pixelWidth = 1280;
renderer.RenderingOptions.PaperFit.UseResponsiveCssRendering(pixelWidth);

// Set paper mode to automatic fit to physical paper
renderer.RenderingOptions.FitToPaperMode = FitToPaperModes.AutomaticFit;

// Render an HTML file
var pdf = renderer.RenderHtmlFileAsPdf("Assets/Responsive.html");

Using IronPDF

December 13, 2023

How to Covert HTML Page to PDF using VB

This potent tool is meticulously crafted to effortlessly integrate with VB, empowering developers to seamlessly conjure high-fidelity PDFs from their applications and web pages.

November 30, 2023

How to Convert PDF to Tiff File in .NET

The API library includes a standalone PDF-to-TIFF conversion engine that is independent of any external resources, in addition to a robust HTML-to-PDF converter that works with PDF files.

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How to Add PDF Stamper in C#

The Stamper Abstract Class is a key component in IronPDF's stamping methods, for a range of specialized stamper classes, each designed for specific purposes.

November 14, 2023

How to Read PDF Files in C#

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September 27, 2023

How to Compress PDF Files in .NET Library

This is where PDF compression comes into play, and the IronPDF library proves to be a valuable asset in this domain.

September 13, 2023

PDF Conversion in C# (Developer Tutorial)

PDF conversion in C# is a crucial and common task for developers dealing with document management and sharing. C#, a powerful programming language by Microsoft, provides a robust framework for handling this process

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How to Convert PDF to PNG in .NET

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How to Display PDF Embedded Text in .NET MAUI

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How to Display a PDF File in ASP.NET Core

In this article, we are going to explore how to use IronPDF to display PDF files in an ASP.NET Core PDF viewer control application

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How to Convert PDF to PNG in C#

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PDF vs PDFA (How It Works For Developers)

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How to Use Fluent Validation With IronPDF in C#

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How to Use ChatGPT with IronPDF For C# Developer

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How to Create PDF Signatures in .NET

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June 14, 2023

How to View PDF Files in VB.NET

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June 7, 2023

How to Build a .NET PDF editor application using IronPDF

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May 31, 2023

How to Merge PDF Files in VB.NET

This article shows how simple it is to use the IronPDF library to merge PDF files with utmost efficiency, requiring only a few lines of code.

May 24, 2023

How to Save PDF File in C# (Beginner Tutorial)

This tutorial will show how to use IronPDF's flexibility to save PDF files from a Windows Form Application, along with more advanced features.

May 17, 2023

How to Convert CSHTML to PDF in C#

In this article, we will walk you through the steps of converting CSHTML to PDF with IronPDF in C#, along with examples.

May 9, 2023

How to Display PDF From Byte Array in Blazor

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May 2, 2023

How to Unsecure a PDF (Beginner Tutorial)

Using IronPDF, we can unsecure PDF files with just a few lines of C# code and a straightforward and efficient process.

April 20, 2023

How to Parse PDF File in VB.NET

The IronPDF VB.NET library provides first-class support for parsing PDF files to extract embedded text and images using versatile APIs.

April 20, 2023

How to Convert PDF to JPG in .NET

This tutorial utilizes a simple yet efficient approach to convert PDF to JPG using the IronPDF C# library, with full control over the output images.

April 20, 2023

ASP PDF Viewer (Developer Tutorial)

ASP.NET provides various ways to display these files through a PDF viewer. An ASP PDF viewer allows web developers to display PDF files directly on a web page.

April 20, 2023

PDF Converter .NET (Developer Tutorial)

IronPDF is a powerful PDF library that enables developers to quickly create, read, and edit PDF documents from various sources: HTML, Markdown, and RTF files.

April 20, 2023

How to Crop PDF File in C#

Cropping and trimming PDF pages is always a challenging task for developers in C#. IronPDF offers a programmatic solution to solve this in a straightforward approach.

April 19, 2023

PDF API C# (Code Example Tutorial)

IronPDF is a powerful PDF converter and API library for PDF processing that enables developers to easily generate, read, and manipulate PDF documents.

April 19, 2023

How to Create PDF in ASP .NET

PDF Creator using ASP is an ideal solution for businesses and organizations that need to generate PDF documents on a regular basis.

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How to Add Images to PDF in VB .NET

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March 26, 2023

How to Read PDF Table in C#

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March 17, 2023

How to Convert QR Code to PDF

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February 26, 2023

PDF Viewer C# Windows Application (Tutorial)

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February 23, 2023

How to Read PDF Files in C#

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How to Convert Word to PDF in C# (Tutorial)

IronPDF is the perfect solution to assist in the process of converting Microsoft Word DOCX files to PDF while maintaining all formats and stylings.

February 2, 2023

Convert PPT (PowerPoint) to PDF in C# (Example Tutorial)

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January 31, 2023

How to View PDF in .NET MAUI (Step-by-Step) Tutorial

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PDFium in C# Alternatives Using IronPDF

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Convert Excel to PDF in C# (Step-by-Step) Tutorial

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Should You Buy IronPDF?

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How to Create PDF Files in .NET Using IronPDF

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Creating a PDF Generator in ASP.NET Core using IronPDF

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Blazor PDF Viewer Tutorial

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Create a PDF File with Blazor Tutorial

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Creating a PDF file in .NET MAUI Using IronPDF

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C# Text to PDF (Code Example Tutorial)

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September 6, 2022

How to Convert Image to PDF in C# [Code Example Tutorial]

Let's explore IronPDF, a free C# library that efficiently converts images to PDF, complete with comprehensive documentation and professional support.

September 5, 2022

C# Convert JPG to PDF (Code Example Tutorial)

Let's guide you through the process of converting JPG images to PDF format in C# using just a few lines of code.

September 4, 2022

C# Convert PNG to PDF (Code Example Tutorial)

In this article, we'll guide you how to convert PNG to PDF using the powerful IronPDF image conversion API in C#.

July 22, 2022

Save Byte Array to PDF C# (Code Example)

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July 18, 2022

C# Convert PDF to Text (Code Example)

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July 1, 2022

How to Scan Multiple Pages into One PDF File

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June 30, 2022

Programmatically Fill PDF Forms in C# (Coding Tutorial)

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June 29, 2022

How to Generate PDF in ASP.NET Using C#

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June 28, 2022

C# Extract Text From PDF (Code Example Tutorial)

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June 27, 2022

How to Extract Data from PDF in C#

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June 24, 2022

How to Add Page Numbers in PDF using C#

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June 21, 2022

How to Add Images in PDF using C#

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June 14, 2022

How to Combine Images Into One PDF

Combine multiple images and save the newly created PDF file programmatically in simple steps.

March 11, 2022

C# Create PDF File Programmatically

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March 9, 2022

How to Open a PDF File in C#

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February 28, 2022

How to Build a C# PDF Generator

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February 26, 2022

How to Remove a Password from a PDF File

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February 25, 2022

How to Password Protect a PDF Document

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January 25, 2022

Create PDF in C# from HTML File

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January 24, 2022

Convert ASPX to PDF

We frequently generate dynamic PDF files using ASP.NET (ASPX) websites, and IronPDF simplifies this process by enabling us to accomplish it in just one line of code.

January 21, 2022

Generating PDF Files in C#

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January 18, 2022

x509certificate2 Add Digital Signature to PDF Programmatically

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January 13, 2022

C# Create PDF (Code Example Tutorial)

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January 7, 2022

.NET Core PDF Library

IronPDF for .NET Core is available cross-platform and supports generating PDF files with a pixel-perfect solution.

November 26, 2021

C# Read PDF File: Easy Tutorial

IronPDF is a library that offers easy PDF file interaction for developers: read PDF files and display data in just two lines of code.

November 5, 2021

How to view PDF files in ASP.NET using C# and IronPDF

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October 28, 2021