// PM> Install-Package IronPdf

using IronPdf;

// Using an existing PDF
using PdfDocument myPdf = PdfDocument.FromFile("sample.pdf");

// Parameters
int pageIndex = 1;
string oldText = ".NET 6"; // Old text to remove
string newText = ".NET 7"; // New text to add

// Replace Text on Page
myPdf.ReplaceTextOnPage(pageIndex, oldText, newText);
        
// Save your new PDF
myPdf.SaveAs("new_sample.pdf");

' PM> Install-Package IronPdf

Imports IronPdf

' Using an existing PDF
Private PdfDocument As using

' Parameters
Private pageIndex As Integer = 1
Private oldText As String = ".NET 6" ' Old text to remove
Private newText As String = ".NET 7" ' New text to add

' Replace Text on Page
myPdf.ReplaceTextOnPage(pageIndex, oldText, newText)

' Save your new PDF
myPdf.SaveAs("new_sample.pdf")