How to Add an Image in PDF File using WPF PDFViewer?

Images can be added as content in the pages of a PDF document using WPF PDF Viewer. In the PageClicked event of PDF Viewer, you will get the location in the page, where the click action is performed from args.Position of PageClickedEventArgs. Here, the image can be added as content to that specific position of a page in the loaded document.

Refer to the following code snippet.

private void PdfViewer_PageClicked(object sender, Syncfusion.Windows.PdfViewer.PageClickedEventArgs args)
{
       //Gets the point, where an image to be added
       System.Windows.Point point =  args.Position;         
       PdfImage newImage = PdfImage.FromFile("../../Data/Syncfusionlogo.jpg");
       //Point conversion
       float x = pdfUnitConvertor.ConvertFromPixels((float)args.Position.X, PdfGraphicsUnit.Point);
       float y = pdfUnitConvertor.ConvertFromPixels((float)args.Position.Y, PdfGraphicsUnit.Point);
       PointF point1 = new PointF(x,y);
 
       if (m_addImage)
       {
           //Draw an image 
           loadedDocument.Pages[args.PageIndex].Graphics.DrawImage(newImage, point1);
           MemoryStream memoryStream = new MemoryStream();
           //Save the modified document
           loadedDocument.Save(memoryStream);
           memoryStream.Position = 0;
           //Load the modified document
           pdfViewer.Load(memoryStream);           pdfViewer.GoToPageAtIndex(args.PageIndex + 1);
       }
       m_addImage = false;
}

View sample in GitHub.

Steps to use the project: 

1. Run the sample.
2. Click the button above the PDF Viewer that will enable the Boolean flag to add an image in pages of the PDF document.
3. Click on any location in the PDF page to add an image in that particular location.
4. After adding the image, the document will be saved and reloaded.
5. Since the image is added as content, it cannot be removed or edited.

Conclusion

I hope you enjoyed learning about how to add an image in PDF file using WPF PDFViewer.

You can refer to our WPF PDF Viewer feature tour page to know about its other groundbreaking feature representations. You can also explore our WPF PDF Viewer documentation to understand how to create and manipulate data.

For current customers, you can check out our components from the License and Downloads page. If you are new to Syncfusion®, you can try our 30-day free trial to check out our other controls.

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