How to Stamp Text & Image on PDFs

using IronPdf;
using IronPdf.Editing;

// This code demonstrates how to create a PDF document from HTML content
// and stamp text on it using IronPdf library features.

// Create a ChromePdfRenderer which will render HTML into a PDF document.
ChromePdfRenderer renderer = new ChromePdfRenderer();

// Render HTML content as a PDF document.
// The RenderHtmlAsPdf method converts the given HTML string into a PDF.
PdfDocument pdf = renderer.RenderHtmlAsPdf("<h1>Example HTML Document!</h1>");

// Create a TextStamper to add text over the PDF content.
// It allows setting various font properties and alignment.
TextStamper textStamper = new TextStamper
{
    Text = "Text Stamper!", // Text to be stamped on the PDF.
    FontFamily = "Bungee Spice", // Font family for the stamped text.
    UseGoogleFont = true, // Flag indicating whether to use Google Fonts.
    FontSize = 30, // Size of the font.
    IsBold = true, // Make the text bold.
    IsItalic = true, // Make the text italic.
    VerticalAlignment = VerticalAlignment.Top // Position the text at the top.
};

// Apply the text stamp to the PDF.
// The ApplyStamp method adds the defined TextStamper object to the PDF.
pdf.ApplyStamp(textStamper);

// Save the modified PDF to the file system.
// The SaveAs method writes the PDF document to a specified file path.
pdf.SaveAs("stampText.pdf");

Imports IronPdf

Imports IronPdf.Editing



' This code demonstrates how to create a PDF document from HTML content

' and stamp text on it using IronPdf library features.



' Create a ChromePdfRenderer which will render HTML into a PDF document.

Private renderer As New ChromePdfRenderer()



' Render HTML content as a PDF document.

' The RenderHtmlAsPdf method converts the given HTML string into a PDF.

Private pdf As PdfDocument = renderer.RenderHtmlAsPdf("<h1>Example HTML Document!</h1>")



' Create a TextStamper to add text over the PDF content.

' It allows setting various font properties and alignment.

Private textStamper As New TextStamper With {

	.Text = "Text Stamper!",

	.FontFamily = "Bungee Spice",

	.UseGoogleFont = True,

	.FontSize = 30,

	.IsBold = True,

	.IsItalic = True,

	.VerticalAlignment = VerticalAlignment.Top

}



' Apply the text stamp to the PDF.

' The ApplyStamp method adds the defined TextStamper object to the PDF.

pdf.ApplyStamp(textStamper)



' Save the modified PDF to the file system.

' The SaveAs method writes the PDF document to a specified file path.

pdf.SaveAs("stampText.pdf")

using IronPdf;
using IronPdf.Editing;
using System;

// Initialize a new instance of ChromePdfRenderer to render HTML into PDF
ChromePdfRenderer renderer = new ChromePdfRenderer();

// Render an HTML string into a PDF document
// The HTML content contains a simple heading
PdfDocument pdf = renderer.RenderHtmlAsPdf("<h1>Example HTML Document!</h1>");

// Initialize ImageStamper with the specified URI of the image
// The image URI points to an online SVG image
ImageStamper imageStamper = new ImageStamper(new Uri("https://ironpdf.com/img/svgs/iron-pdf-logo.svg"))
{
    // Set the vertical alignment of the image stamp to be at the top of the page
    VerticalAlignment = VerticalAlignment.Top
};

// Apply the image stamp to the first page of the generated PDF
pdf.ApplyStamp(imageStamper, 0);

// Save the PDF document with the applied stamp to a file named "stampImage.pdf"
pdf.SaveAs("stampImage.pdf");

Imports IronPdf

Imports IronPdf.Editing

Imports System



' Initialize a new instance of ChromePdfRenderer to render HTML into PDF

Private renderer As New ChromePdfRenderer()



' Render an HTML string into a PDF document

' The HTML content contains a simple heading

Private pdf As PdfDocument = renderer.RenderHtmlAsPdf("<h1>Example HTML Document!</h1>")



' Initialize ImageStamper with the specified URI of the image

' The image URI points to an online SVG image

Private imageStamper As New ImageStamper(New Uri("https://ironpdf.com/img/svgs/iron-pdf-logo.svg")) With {.VerticalAlignment = VerticalAlignment.Top}



' Apply the image stamp to the first page of the generated PDF

pdf.ApplyStamp(imageStamper, 0)



' Save the PDF document with the applied stamp to a file named "stampImage.pdf"

pdf.SaveAs("stampImage.pdf")

using IronPdf;
using IronPdf.Editing;

// This code demonstrates creating a PDF from HTML content and adding multiple text stamps.

// Initialize a Chrome PDF renderer to convert HTML to PDF
ChromePdfRenderer renderer = new ChromePdfRenderer();

// Render a simple HTML string as a PDF document
PdfDocument pdf = renderer.RenderHtmlAsPdf("<h1>Example HTML Document!</h1>");

// Create the first text stamper with specified text and alignment
TextStamper stamper1 = new TextStamper
{
    Text = "Text stamp 1",
    VerticalAlignment = VerticalAlignment.Top,
    HorizontalAlignment = HorizontalAlignment.Left,
};

// Create the second text stamper with specified text and alignment
TextStamper stamper2 = new TextStamper
{
    Text = "Text stamp 2",
    VerticalAlignment = VerticalAlignment.Top,
    HorizontalAlignment = HorizontalAlignment.Right,
};

// Create an array of stampers to be applied to the PDF
TextStamper[] stampersToApply = { stamper1, stamper2 };

// Apply the array of text stamps to the PDF document
pdf.ApplyStamp(stampersToApply); // Ensure you are using the correct method to apply stamps

// Save the modified PDF document to a file
pdf.SaveAs("multipleStamps.pdf");

Imports IronPdf

Imports IronPdf.Editing



' This code demonstrates creating a PDF from HTML content and adding multiple text stamps.



' Initialize a Chrome PDF renderer to convert HTML to PDF

Private renderer As New ChromePdfRenderer()



' Render a simple HTML string as a PDF document

Private pdf As PdfDocument = renderer.RenderHtmlAsPdf("<h1>Example HTML Document!</h1>")



' Create the first text stamper with specified text and alignment

Private stamper1 As New TextStamper With {

	.Text = "Text stamp 1",

	.VerticalAlignment = VerticalAlignment.Top,

	.HorizontalAlignment = HorizontalAlignment.Left

}



' Create the second text stamper with specified text and alignment

Private stamper2 As New TextStamper With {

	.Text = "Text stamp 2",

	.VerticalAlignment = VerticalAlignment.Top,

	.HorizontalAlignment = HorizontalAlignment.Right

}



' Create an array of stampers to be applied to the PDF

Private stampersToApply() As TextStamper = { stamper1, stamper2 }



' Apply the array of text stamps to the PDF document

pdf.ApplyStamp(stampersToApply) ' Ensure you are using the correct method to apply stamps



' Save the modified PDF document to a file

pdf.SaveAs("multipleStamps.pdf")

using IronPdf.Editing;
using System;

// This code snippet demonstrates creating an image stamper to add an image to a PDF.
// The image is sourced from a URI and positioned on the page with specified offsets.

// Creating an ImageStamper object with the image URL.
ImageStamper imageStamper = new ImageStamper(new Uri("https://ironpdf.com/img/svgs/iron-pdf-logo.svg"))
{
    // Align the image horizontally to the center of the page.
    HorizontalAlignment = HorizontalAlignment.Center,
    
    // Align the image vertically to the top of the page.
    VerticalAlignment = VerticalAlignment.Top,

    // Set horizontal offset (from the centered position).
    HorizontalOffset = new Length(10),

    // Set vertical offset (from the top).
    VerticalOffset = new Length(10),
};

// This ImageStamper object is configured and ready to apply the specified image onto a PDF.

Imports IronPdf.Editing

Imports System



' This code snippet demonstrates creating an image stamper to add an image to a PDF.

' The image is sourced from a URI and positioned on the page with specified offsets.



' Creating an ImageStamper object with the image URL.

Private imageStamper As New ImageStamper(New Uri("https://ironpdf.com/img/svgs/iron-pdf-logo.svg")) With {

	.HorizontalAlignment = HorizontalAlignment.Center,

	.VerticalAlignment = VerticalAlignment.Top,

	.HorizontalOffset = New Length(10),

	.VerticalOffset = New Length(10)

}



' This ImageStamper object is configured and ready to apply the specified image onto a PDF.

using IronPdf;
using IronPdf.Editing;

/// <summary>
/// Demonstrates rendering an HTML document to a PDF using IronPdf and applying an HTML stamp.
/// </summary>

// Initialize a Chrome PDF renderer, which will be used to convert HTML to PDF
ChromePdfRenderer renderer = new ChromePdfRenderer();

// Define a simple HTML document as a string to be converted to PDF
string htmlDocument = "<h1>Example HTML Document!</h1>";

// Render the HTML document string to a PDF document
PdfDocument pdf = renderer.RenderHtmlAsPdf(htmlDocument);

// Create an HTML stamper for overlaying additional content onto the existing PDF
HtmlStamper htmlStamper = new HtmlStamper
{
    // HTML content for the stamper; this content will be overlaid on the existing PDF
    Html = @"<img src='https://ironpdf.com/img/svgs/iron-pdf-logo.svg'>
    <h1>Iron Software</h1>",

    // Set the alignment for the stamper; in this case, it is aligned to the top
    VerticalAlignment = VerticalAlignment.Top,
};

// Apply the HTML stamper to the PDF document
pdf.ApplyStamp(htmlStamper);

// Save the modified PDF document to a file
pdf.SaveAs("stampHtml.pdf");

Imports IronPdf

Imports IronPdf.Editing



''' <summary>

''' Demonstrates rendering an HTML document to a PDF using IronPdf and applying an HTML stamp.

''' </summary>



' Initialize a Chrome PDF renderer, which will be used to convert HTML to PDF

Private renderer As New ChromePdfRenderer()



' Define a simple HTML document as a string to be converted to PDF

Private htmlDocument As String = "<h1>Example HTML Document!</h1>"



' Render the HTML document string to a PDF document

Private pdf As PdfDocument = renderer.RenderHtmlAsPdf(htmlDocument)



' Create an HTML stamper for overlaying additional content onto the existing PDF

Private htmlStamper As New HtmlStamper With {

	.Html = "<img src='https://ironpdf.com/img/svgs/iron-pdf-logo.svg'>

    <h1>Iron Software</h1>",

	.VerticalAlignment = VerticalAlignment.Top

}



' Apply the HTML stamper to the PDF document

pdf.ApplyStamp(htmlStamper)



' Save the modified PDF document to a file

pdf.SaveAs("stampHtml.pdf")

using IronPdf;
using IronPdf.Editing;

// Create an instance of ChromePdfRenderer to render HTML to PDF
ChromePdfRenderer renderer = new ChromePdfRenderer();

// Render HTML content as a PDF document
PdfDocument pdf = renderer.RenderHtmlAsPdf("<h1>Example HTML Document!</h1>");

// Create a barcode stamper with specified text and encoding
// BarcodeEncoding.Code39 is used in this example
BarcodeStamper barcodeStamper = new BarcodeStamper("IronPdf!!", BarcodeEncoding.Code39)
{
    // Set the vertical alignment of the barcode in the PDF
    VerticalAlignment = VerticalAlignment.Top,
};

// Apply the barcode stamp to the rendered PDF document
pdf.ApplyStamp(barcodeStamper);

// Save the stamped PDF document to a file
pdf.SaveAs("stampBarcode.pdf");

Imports IronPdf

Imports IronPdf.Editing



' Create an instance of ChromePdfRenderer to render HTML to PDF

Private renderer As New ChromePdfRenderer()



' Render HTML content as a PDF document

Private pdf As PdfDocument = renderer.RenderHtmlAsPdf("<h1>Example HTML Document!</h1>")



' Create a barcode stamper with specified text and encoding

' BarcodeEncoding.Code39 is used in this example

Private barcodeStamper As New BarcodeStamper("IronPdf!!", BarcodeEncoding.Code39) With {.VerticalAlignment = VerticalAlignment.Top}



' Apply the barcode stamp to the rendered PDF document

pdf.ApplyStamp(barcodeStamper)



' Save the stamped PDF document to a file

pdf.SaveAs("stampBarcode.pdf")