USING IRONPPT

This tutorial shows how to convert a PowerPoint presentation to PDF in C# using the IronPDF library.

IronPDF: .NET PDF Library

IronPDF is a .NET PDF library that makes it simple for C# and VB developers to create, edit, and manipulate PDF documents within .NET applications. IronPDF provides excellent rendering capabilities with support for converting HTML to PDF using IronPDF, converting URLs to PDF using IronPDF, SVG to Image, HTML File to PDF, and much more. IronPDF excels at producing PDFs of reports, invoices, statements, and receipts from web pages or existing HTML/CSS templates.

One critical feature is that the IronPDF library can be used to fill out existing PDF forms or create new PDF forms from scratch. This allows businesses to streamline their document workflow by automating the creation and filling out of forms with IronPDF. In addition, IronPDF makes it easy to add headers and footers using IronPDF, apply watermarks to PDFs with IronPDF, and page numbers to PDF files. This makes it an ideal solution for creating professional-looking PDFs. Let's see how to use IronPDF to convert a PowerPoint presentation to a PDF document.

Prerequisites

There are some prerequisites to converting a .ppt file to a PDF document.

  1. Visual Studio 2022 (Recommended)
  2. A running .NET application with the latest .NET Framework (Recommended)
  3. Microsoft Office installed
  4. A stable internet connection to install the IronPDF library for PDF conversion

Let's move to the main steps in converting .ppt files to PDFs.

Step 1: Export your PowerPoint Presentation as HTML

The first step is to convert PowerPoint files to HTML, and then the exported HTML is used to convert to a PDF document.

To export your .ppt file to HTML format, do the following:

  • Open the Zamzar PPT to HTML converter online tool.
  • Upload the PowerPoint document to the Zamzar website.
  • Click on the "Convert Now" button.

    Convert PPT (PowerPoint) to PDF in C# (Example Tutorial), Figure 1: Convert PPT to HTML Convert PPT to HTML

It'll start converting the PPTX file to HTML.

Step 2: Add IronPDF to the solution

IronPDF can be installed using NuGet Package Manager or the NuGet Package Manager Console.

Let's use the Package Manager Console method to install IronPDF.

Go to "Tools" in the toolbar and select the "Package Manager Console" option from the side menu.

Convert PPT (PowerPoint) to PDF in C# (Example Tutorial), Figure 2: NuGet Package Manager is shown in Visual Studio NuGet Package Manager is shown in Visual Studio

Enter the following command in the console to install IronPDF.

Install-Package IronPPT

Convert PPT (PowerPoint) to PDF in C# (Example Tutorial), Figure 3: Installation of IronPDF Library Installation of IronPDF Library

Now, it's time to write the code to convert a PowerPoint to PDF using the IronPDF library.

Step 3: Convert the HTML File to PDF

Once the HTML file is available, IronPDF will be used to convert the HTML file to a PDF file.

Add IronPDF to the Code file

First, add the following line of code to the top of the source file to import IronPDF.

using IronPdf;
using IronPdf;
Imports IronPdf
$vbLabelText   $csharpLabel

Instantiate ChromePdfRenderer Object

Now, instantiate the ChromePdfRenderer object. It'll help to create and customize the PDF file.

var renderer = new ChromePdfRenderer();
var renderer = new ChromePdfRenderer();
Dim renderer = New ChromePdfRenderer()
$vbLabelText   $csharpLabel

Convert HTML file (Exported from PowerPoint file) to PDF

Let's use the RenderHtmlFileAsPdf method to convert the HTML file to the PDF.

var pdf = renderer.RenderHtmlFileAsPdf(@"C:\Presentation\Presentation.html");
var pdf = renderer.RenderHtmlFileAsPdf(@"C:\Presentation\Presentation.html");
Dim pdf = renderer.RenderHtmlFileAsPdf("C:\Presentation\Presentation.html")
$vbLabelText   $csharpLabel

The PowerPoint .ppt files are converted to PDF. Let's see how to customize the generated PDF with a watermark, password, and headers.

Step 4: Add watermark, password, and headers in the PDF file

Add Watermarks in PDFs using IronPDF

This section shows how to add a watermark in the PDF as a stamped image. Below, use the ApplyStamp method to apply watermarks in the PDF file.

pdf.ApplyStamp(new ImageStamper("https://ironpdf.com/img/products/ironpdf-logo-text-dotnet.svg"));
pdf.ApplyStamp(new ImageStamper("https://ironpdf.com/img/products/ironpdf-logo-text-dotnet.svg"));
pdf.ApplyStamp(New ImageStamper("https://ironpdf.com/img/products/ironpdf-logo-text-dotnet.svg"))
$vbLabelText   $csharpLabel

Add Password Protection to PDFs

Adding a password to the PDF protects it from unauthorized access. IronPDF supports adding passwords for both users and owners. You can set a different password for the user and admin to allow customization of PDF files.

pdf.Password = "EasyPassword";
pdf.Password = "EasyPassword";
pdf.Password = "EasyPassword"
$vbLabelText   $csharpLabel

Add HTML headers

HTML headers are a good functionality for PDFs. It makes it easy to customize the header stylishly. Use the HtmlHeaderFooter object to add headers in the PDF file.

renderer.RenderingOptions.HtmlHeader = new HtmlHeaderFooter()
{
    MaxHeight = 20, //millimeters
    HtmlFragment = "<h1>Headers are easy with IronPDF!</h1>",
};
renderer.RenderingOptions.HtmlHeader = new HtmlHeaderFooter()
{
    MaxHeight = 20, //millimeters
    HtmlFragment = "<h1>Headers are easy with IronPDF!</h1>",
};
renderer.RenderingOptions.HtmlHeader = New HtmlHeaderFooter() With {

	.MaxHeight = 20,

	.HtmlFragment = "<h1>Headers are easy with IronPDF!</h1>"

}
$vbLabelText   $csharpLabel

Step 5: Save PDF File

After all customizations are done, it's now time to save the PDF file on the local machine. Use IronPDF's SaveAs method to save the PDF file.

pdf.SaveAs("C:\\PptToPdf.pdf");
pdf.SaveAs("C:\\PptToPdf.pdf");
pdf.SaveAs("C:\PptToPdf.pdf")
$vbLabelText   $csharpLabel

Let's look at the Program.cs file.

using IronPdf;
using IronPdf.Editing;

var renderer = new ChromePdfRenderer();
renderer.RenderingOptions.HtmlHeader = new HtmlHeaderFooter()
{
    MaxHeight = 20, //millimeters
    HtmlFragment = "<h1>Headers are easy with IronPDF!</h1>",
};

var pdf = renderer.RenderHtmlFileAsPdf(@"C:\Presentation\Presentation.html");

pdf.ApplyStamp(new ImageStamper("https://ironpdf.com/img/products/ironpdf-logo-text-dotnet.svg"));

pdf.Password = "EasyPassword";

pdf.SaveAs("C:\\PptToPdf.pdf");
using IronPdf;
using IronPdf.Editing;

var renderer = new ChromePdfRenderer();
renderer.RenderingOptions.HtmlHeader = new HtmlHeaderFooter()
{
    MaxHeight = 20, //millimeters
    HtmlFragment = "<h1>Headers are easy with IronPDF!</h1>",
};

var pdf = renderer.RenderHtmlFileAsPdf(@"C:\Presentation\Presentation.html");

pdf.ApplyStamp(new ImageStamper("https://ironpdf.com/img/products/ironpdf-logo-text-dotnet.svg"));

pdf.Password = "EasyPassword";

pdf.SaveAs("C:\\PptToPdf.pdf");
Imports IronPdf

Imports IronPdf.Editing



Private renderer = New ChromePdfRenderer()

renderer.RenderingOptions.HtmlHeader = New HtmlHeaderFooter() With {

	.MaxHeight = 20,

	.HtmlFragment = "<h1>Headers are easy with IronPDF!</h1>"

}



Dim pdf = renderer.RenderHtmlFileAsPdf("C:\Presentation\Presentation.html")



pdf.ApplyStamp(New ImageStamper("https://ironpdf.com/img/products/ironpdf-logo-text-dotnet.svg"))



pdf.Password = "EasyPassword"



pdf.SaveAs("C:\PptToPdf.pdf")
$vbLabelText   $csharpLabel

Output PDF File

The following PowerPoint presentation was converted to a PDF file.

Convert PPT (PowerPoint) to PDF in C# (Example Tutorial), Figure 4: PowerPoint Presentation PowerPoint Presentation

The generated PDF file is saved at the given location when the project is run. Open the file, and when it asks for a password, enter the password given in the project.

Convert PPT (PowerPoint) to PDF in C# (Example Tutorial), Figure 5: Password Dialog Box Password Dialog Box

After entering the correct password, the output PDF file looks like this.

Convert PPT (PowerPoint) to PDF in C# (Example Tutorial), Figure 6: Output of the Generated PDF Output of the Generated PDF

IronPDF renders the PDF file while preserving the formatting and responsiveness of the PowerPoint presentation. Headers and watermarks have been applied in the project.

Summary

That's how you convert a .ppt to PDF using IronPDF in C#. If you need more information about IronPDF, be sure to check out another example of using HTML to create a PDF using IronPDF. The sample pages contain a wealth of resources that can help you with all PDF-related operations.

Cheap and functional, IronPDF is the perfect solution for those who need to create PDF documents in .NET applications. IronPDF starts from $749, making it one of the more affordable PDF libraries on the market.

Purchase Iron Software's complete software suite of five products for only the price of two of them!

Frequently Asked Questions

What is the benefit of converting PowerPoint presentations to PDFs using C#?

Converting PowerPoint presentations to PDFs using C# enhances business operations by enabling quick creation, easy updates, and sharing of presentations. It also ensures compatibility with various devices and programs, saving time and improving efficiency.

What is IronPPT?

IronPPT is a .NET PowerPoint Library from Iron Software that seamlessly loads and saves PPTX files without requiring Microsoft Office. It is perfect for automating slides, text, shapes, and images in any .NET application.

How do I convert a PowerPoint presentation to PDF using IronPDF?

To convert a PowerPoint presentation to PDF using IronPDF, first convert the presentation to an HTML file, use IronPDF's RenderHtmlFileAsPdf method to generate a PDF from the HTML file, and then save the PDF.

What prerequisites are needed to convert a PPT file to a PDF document?

The prerequisites include having Visual Studio 2022, a running .NET application with the latest .NET Framework, Microsoft Office installed, and a stable internet connection to install the IronPDF library.

How can I add a watermark to PDFs using IronPDF?

To add a watermark to PDFs using IronPDF, use the ApplyStamp method with an ImageStamper to apply a stamped image as a watermark in the PDF.

Can I add password protection to my PDF using IronPDF?

Yes, IronPDF allows you to add password protection to your PDF files, protecting them from unauthorized access. You can set different passwords for users and owners.

How do I install IronPDF?

IronPDF can be installed using the NuGet Package Manager or the NuGet Package Manager Console. Use the command 'Install-Package IronPdf' in the Package Manager Console to install it.

What is the price of IronPDF?

IronPDF starts from $liteLicense, making it a cost-effective solution for creating PDF documents in .NET applications.

Regan Pun
Software Engineer
Regan graduated from the University of Reading, with a BA in Electronic Engineering. Before joining Iron Software, his previous job roles had him laser-focused on single tasks; and what he most enjoys at Iron Software is the spectrum of work he gets to undertake, whether it’s adding value to sales, technical support, product development or marketing. He enjoys understanding the way developers are using the Iron Software library, and using that knowledge to continually improve documentation and develop the products.

Ready to get started? Version: 2025.6 just released

View Licenses >