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");

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");

USING IRONPDF

How to Convert PDF to PNG in .NET

Updated March 17, 2024

The article explores the detailed process of converting PDF files into PNG image format using the capabilities of the .NET Framework by using the IronPDF library.

Why Convert PDF to PNG?

The rationale behind converting PDF files into PNG format is grounded in the unique advantages that PNG (Portable Network Graphics) images offer. PNG is renowned for its lossless compression, enabling images to be compressed without compromising quality. Additionally, PNG supports transparent backgrounds, making it an ideal format for retaining intricate visual details while accommodating diverse design elements.

By converting PDFs to PNG, one can ensure that document formatting, full image resolution and fidelity, and intricate graphical components are preserved, making PNG an invaluable choice for applications requiring visual precision and versatility.

This article will use IronPDF to convert PDF to PNG images programmatically.

How to Convert PDF to PNG using .NET

Download and install the .NET PDF to PNG library.
Convert PDF files to PNG images.
Open an existing PDF document from the system using the "PdfDocument.FromFile" method.
Convert the PDF to images using the "RasterizeToImageFiles" method.
Pass the output folder and image format as parameters to the method mentioned above.

1. IronPDF

IronPDF is a .NET library that allows developers to create, manipulate, and render PDF documents in .NET applications. It provides a wide range of features for working with PDF files, including creating PDF documents from scratch, converting document pages from HTML to PDF, merging multiple PDFs, adding text and images, extracting text and images from PDFs, and more. IronPDF is particularly useful when working with Web Applications or any .NET project that requires PDF generation or manipulation capabilities.

2. Setting up the Environment and installing IronPDF

It is essential to create an ideal environment before beginning the process of PDF transformation with IronPDF. Installing a suitable version of the .NET Framework should be your first step. Once your framework is prepared, start IronPDF installation. Employing NuGet, a well-liked package management for .NET projects, makes this task simple.

2.1. Create a New VB.NET Project

Open Visual Studio and follow these steps to create a new .NET project:
- Click on "File" > "New" > "Project..."
The Project dropdown in Visual Studio
- Choose a project template based on your application type (e.g., Windows Forms, Console Application, ASP.NET, etc.) and click on next.
Create a new project with Visual Studio
- Enter a name and location for your project and click on the Next button.
Configure your new project
- Select the target framework and Click "Create" to create the project.
Install IronPDF:
After creating the project, you'll need to install the IronPDF library using NuGet. Here's how:
- Right-click on your project in the Solution Explorer.
- Select "Manage NuGet Packages..."
The NuGet Package Manager dropdown from the Tools bar in Visual Studio
- In the "NuGet Package Manager" window, make sure "Browse" is selected on the left.
- In the search box, type "IronPDF."
IronPDF selected in the NuGet Package Manager
- Select the "IronPDF" package from the search results.
- Click the "Install" button to install the package.

3. Convert PDF Files to PNG images

The process of converting PDF documents into PNG images is made remarkably straightforward through the utilization of the IronPDF .NET library. Within this segment, we will delve into the streamlined methodology that enables you to seamlessly transform PDFs into PNG images with a mere handful of concise code lines. By harnessing the capabilities of IronPDF, this process becomes an efficient and accessible endeavor. Let's navigate through the steps that empower you to achieve this conversion effortlessly.

3.1. Input PDF files

How to Convert PDF to PNG in .NET, Figure 6: A three-page PDF document with a variety of graphs and charts A three-page PDF document with a variety of graphs and charts

using IronPdf;

var pdf = PdfDocument.FromFile("bucket.pdf");
pdf.RasterizeToImageFiles(@"C:\image\folder\*.png");

using IronPdf;

var pdf = PdfDocument.FromFile("bucket.pdf");
pdf.RasterizeToImageFiles(@"C:\image\folder\*.png");

Imports IronPdf

Private pdf = PdfDocument.FromFile("bucket.pdf")
pdf.RasterizeToImageFiles("C:\image\folder\*.png")

VB C#

The following code sample snippet utilizes the IronPDF library within a .NET application to perform the conversion of all the pages of a PDF document into a sequence of PNG image files. It commences by loading the designated PDF file named "bucket.pdf". Subsequently, it proceeds to iterate through each page of the PDF document, rasterizing each page and transforming it into an individual PNG image. These resulting images are then stored in a predetermined directory path, with filenames produced automatically according to the content of the original PDF. This process effectively achieves the conversion of the whole PDF document into a series of PNG images.

3.2. Output Images

How to Convert PDF to PNG in .NET, Figure 7: Three PNG pictures in the Windows file explorer, one for each of the PDF pages Three PNG pictures in the Windows file explorer, one for each of the PDF pages

4. Conclusion

The ability to convert PDF pages to PNG images using the .NET Framework, specifically leveraging the power of IronPDF, offers a versatile and effective solution for addressing the growing demand for seamless document transformation in today's technology-driven landscape. The unique advantages of PNG format, including lossless compression and support for transparent backgrounds, make it an invaluable choice for preserving document formatting, image fidelity, and intricate graphical elements.

IronPDF capabilities empower developers to easily integrate the PDF page to PNG conversion functionality into their applications, demonstrating the framework's significance in enhancing visual precision and versatility across various domains. As technology continues to evolve, such tools provide crucial support for meeting the ever-expanding requirements of modern applications.

Make sure to check out this PDF-to-PNG conversion tutorial, and for more related code examples, visit the IronPDF website.

< PREVIOUS
PDF Conversion in C# (Developer Tutorial)

NEXT >
How to Display a PDF File in ASP.NET Core