How to convert image to PDF using C# and VB.NET?

Syncfusion Essential PDF is a .NET PDF library used to create, read, and edit PDF documents. Using this library, you can convert PDF documents from multiple image formats like Raster images (BMP, JPEG, GIF, PNG, TIFF, ICO, ICON) and Vector images (EMF only, EMF plus, EMF plus dual, WMF) in C# and VB.NET.

Steps to draw image on PDF programmatically:

1. Create a new C# console application project.

Install the Syncfusion.Pdf.WinForms NuGet packages as reference to your .NET Framework application from NuGet.org.

2. 
3. Include the following namespaces in the Program.cs file.

C#

using Syncfusion.Pdf;
using Syncfusion.Pdf.Graphics;

VB.NET

Imports Syncfusion.Pdf
Imports Syncfusion.Pdf.Graphics

4. Use the following code snippet to create PDF and draw image.

C#

//Create a new PDF document
PdfDocument doc = new PdfDocument();
//Add a page to the document
PdfPage page = doc.Pages.Add();
//Get page size to draw image which fits the page
SizeF pageSize = page.GetClientSize();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the image from the disk
PdfBitmap image = new PdfBitmap("Autumn Leaves.jpg");
//Draw the image
graphics.DrawImage(image, new RectangleF(0,0, pageSize.Width, pageSize.Height));
//Save the document
doc.Save("OutputImage.pdf");
//Close the document
doc.Close(true);
//This will open the PDF file so, the result will be seen in default PDF viewer
Process.Start("OutputImage.pdf");

VB.NET

'Create a new PDF document
Dim doc As New PdfDocument()
'Add a page to the document
Dim page As PdfPage = doc.Pages.Add()
'Getting page size to draw the image which fits the page 
Dim pageSize As SizeF = page.GetClientSize()
'Create PDF graphics for the page
Dim graphics As PdfGraphics = page.Graphics
'Load the image from the disk
Dim image As New PdfBitmap("Autumn Leaves.jpg")
'Draw the image
graphics.DrawImage(image, New RectangleF(0, 0, pageSize.Width, pageSize.Height))
'Save the document
doc.Save("OutputImage.pdf")
'Close the document
doc.Close(True)
'This will open the PDF file so, the result will be seen in default PDF viewer
Process.Start("OutputImage.pdf")

A complete working sample can be downloaded from ImageToPDFSample.zip

By executing the program, you will get the PDF document as follows.

Take a moment to peruse the documentation for working with images, where you will find other options like inserting, replacing image in PDF document, image pagination and image masking.

An online sample link demonstrating the use of Inserting images in PDF.

Refer here to explore the rich set of Syncfusion Essential PDF features.

Note:

Starting with v16.2.0.x, if you reference Syncfusion assemblies from trial setup or from the NuGet feed, include a license key in your projects. Refer to link to learn about generating and registering Syncfusion license key in your application to use the components without trail message.

Conclusion

I hope you enjoyed learning about how to convert image to PDF in the C# and VB.NET.

You can refer to our .NET PDF library’s feature tour page to know about its other groundbreaking feature representations. You can also refer to our .NET PDF documentation that shows how to configure the PDF Library in .NET.

For current customers, you can check out our File Formats from the License and Downloads page. If you are new to Syncfusion, you can try our 30-day free trial to check out our .NET PDF and other File Formats framework.

If you have any queries or require clarifications, please let us know in comments below. You can also contact us through our support forums, Direct-Trac, or feedback portal. We are always happy to assist you!