Replace TextBoxField with Image in PDF Document

Product Version	Product	Author
2021.1.212	RadPdfProcessing	Martin Velikov

Description

How to replace a TextBoxField with an Image in a PDF document.

Solution

In the example below, we are demonstrating how to find a specific TextBoxField by its name in the imported into a RadFixedDocument PDF document, preserve its size and Position and replace it with an Image.

Replace TextBoxField with Image in Imported PDF Document

RadFixedPage firstPage = document.Pages[0];

Annotation field = firstPage.Annotations.First(a => ((VariableContentWidget)a).Field.Name == "SampleField"); 
Telerik.Documents.Primitives.Rect fieldRect = field.Rect; 
 
string imagePath = "image.png"; 
ImageSource newImageSource; 
using (FileStream source = File.Open(imagePath, FileMode.Open)) 
{ 
    newImageSource = new ImageSource(source); 
} 
 
SimplePosition simplePosition = new SimplePosition(); 
simplePosition.Translate(fieldRect.X, fieldRect.Y); 
 
Image newImage = new Image 
{ 
    ImageSource = newImageSource, 
    Position = simplePosition, 
    Width = fieldRect.Width, 
    Height = fieldRect.Height 
}; 
 
firstPage.Annotations.Remove(field); 
firstPage.Content.Add(newImage);