Convert Image to PDF in C#: A Complete Guide

Often you need to combine the images into a single file in C#. One of the best solutions is the conversion of images to a PDF file. In this article, you will learn how to convert images to a PDF in C# following a few easy steps. Also, the provided method will ensure the high-quality and high-speed C# image to PDF conversion. So let’s go through the step-by-step guide and see how to perform image to PDF conversion in C#.

C# Image to PDF Conversion Library
Convert an Image to PDF in C#
Convert Multiple Images to a PDF

C# Library to Convert Image to PDF#

For image to PDF conversion, we’ll use Aspose.PDF for .NET. It is a powerful PDF library that lets you create and manipulate PDF files from within your .NET applications. Also, it provides high-fidelity conversion of PDF files.

You can either download the library or install it using NuGet.

PM> Install-Package Aspose.PDF

How to Convert an Image to PDF in C##

Let’s first have a look at how to convert a single image to a PDF in C#. The following are the steps to perform this operation.

Create an instance of Document class.
Add a new Page to the PDF document using Document.Pages.Add() method and set the page’s properties.
Load the image file into a FileStream object.
Add a new Image to the page using Page.Paragraphs.Add(Image) method.
Set the image’s stream using Image.ImageStream property.
Finally, save the PDF document using Document.Save(String) method.

The following code sample shows how to convert a PNG image to PDF in C#.

Convert Multiple Images to a PDF in C##

The following are the steps to convert multiple images to a single PDF file in C#.

Create an instance of Document class.
Get the list of the image files’ names in an array using Directory.GetFiles(string) method.
For each image file in the list, do the following:
- Add a new Page to the PDF document using Document.Pages.Add() method and set page’s properties.
- Load the image file into a FileStream object.
- Add a new Image to the page using Page.Paragraphs.Add(Image) method.
- Set the image’s stream using Image.ImageStream property.
Finally, save the PDF document using Document.Save(String) method.

The following code sample shows the conversion of multiple images to a single PDF in C#.

Free C# Image to PDF Conversion#

You can convert images to PDF without evaluation limitations by getting a free temporary license.

Explore C# Image to PDF Library#

You can explore more about the C# image to PDF converter library using documentation. In case you would have any queries, feel free to let us know via our forum.

Conclusion#

In this article, you have learned how to convert an image to PDF in C#. Also, you have seen how to convert multiple images to a single PDF programmatically. Thus, you can easily perform any kind of image to PDF conversion in your application. All you need to do is install the C# PDF library in your application.