// PM> Install-Package IronPdf
using IronPdf;
using IronPdf.Editing;
using System.Web; // for Server.MapPath

// PDFs can be edited or amended by stamping new HTML content into the foreground or background.

var Renderer = new IronPdf.ChromePdfRenderer();
using var pdf = Renderer.RenderUrlAsPdf("https://www.nuget.org/packages/IronPdf");

var BackgroundStamp = new IronPdf.Editing.HtmlStamp() { Html = "<img src='logo.jpg' />", Width = 50, Height = 25, Opacity = 50, Bottom = 5, ZIndex = IronPdf.Editing.HtmlStamp.StampLayer.BehindExistingPDFContent, HtmlBaseUrl = new Uri(System.Reflection.Assembly.GetEntryAssembly().Location).AbsoluteUri };
pdf.StampHTML(BackgroundStamp);

var ForegroundStamp = new IronPdf.Editing.HtmlStamp() { Html = "<h2 style='color:red'>copyright 2018 ironpdf.com", Width = 50, Height = 50, Opacity = 50, Rotation = -45, ZIndex = IronPdf.Editing.HtmlStamp.StampLayer.OnTopOfExistingPDFContent };
pdf.StampHTML(ForegroundStamp);

pdf.SaveAs(@"Stamped.pdf");

' PM> Install-Package IronPdf
Imports IronPdf
Imports IronPdf.Editing
Imports System.Web ' for Server.MapPath

' PDFs can be edited or amended by stamping new HTML content into the foreground or background.

Private Renderer = New IronPdf.ChromePdfRenderer()
Private var As using

Private BackgroundStamp = New IronPdf.Editing.HtmlStamp() With {
	.Html = "<img src='logo.jpg' />",
	.Width = 50,
	.Height = 25,
	.Opacity = 50,
	.Bottom = 5,
	.ZIndex = IronPdf.Editing.HtmlStamp.StampLayer.BehindExistingPDFContent,
	.HtmlBaseUrl = (New Uri(System.Reflection.Assembly.GetEntryAssembly().Location)).AbsoluteUri
}
pdf.StampHTML(BackgroundStamp)

Dim ForegroundStamp = New IronPdf.Editing.HtmlStamp() With {
	.Html = "<h2 style='color:red'>copyright 2018 ironpdf.com",
	.Width = 50,
	.Height = 50,
	.Opacity = 50,
	.Rotation = -45,
	.ZIndex = IronPdf.Editing.HtmlStamp.StampLayer.OnTopOfExistingPDFContent
}
pdf.StampHTML(ForegroundStamp)

pdf.SaveAs("Stamped.pdf")