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How to Draw Text and Bitmap on PDFs

Chaknith Bin

Updated:July 28, 2025

Drawing text and images on a PDF involves adding text and images to an existing document. IronPDF seamlessly enables this feature. By incorporating text and images, users can customize PDFs with watermarks, logos, and annotations, improving the document's visual appearance and branding. Additionally, text and images facilitate the presentation of information, data visualization, and the creation of interactive forms.

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Draw Text on PDF Example

By utilizing the DrawText method available for the PdfDocument object, you can add text to an existing PDF without altering its original content.

:path=/static-assets/pdf/content-code-examples/how-to/draw-text-and-bitmap-draw-text.cs

using IronPdf;
using IronSoftware.Drawing;

ChromePdfRenderer renderer = new ChromePdfRenderer();
PdfDocument pdf = renderer.RenderHtmlAsPdf("<h1>testing</h1>");

// Draw text on PDF
pdf.DrawText("Some text", FontTypes.TimesNewRoman.Name, FontSize: 12, PageIndex: 0, X: 100, Y: 100, Color.Black, Rotation: 0);

pdf.SaveAs("drawText.pdf");

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Available Fonts in FontTypes Class

The DrawText method currently supports all Standard Fonts in IronPDF, including Courier, Arial (or Helvetica), Times New Roman, Symbol, and ZapfDingbats. Visit the 'Standard Fonts in IronPDF' section in the Manage Fonts article for italic, bold, and oblique variants of these font types.

The ZapfDingbats font, in particular, can be used to display symbols such as ✖❄▲❪ ❫. For a comprehensive list of supported symbols, you can visit Wikipedia on Zapf Dingbats.

Output fonts sample on PDF

Draw Text with Newline

The draw text action supports newline characters, allowing you to render text with built-in newlines for better formatting and visual clarity.

To achieve this, add newline characters (\n) to the text string. Using the example above, you can draw:

string textWithNewlines = "Some text\nSecond line";
pdfDoc.DrawText(textWithNewlines, font, position);

string textWithNewlines = "Some text\nSecond line";
pdfDoc.DrawText(textWithNewlines, font, position);

Imports Microsoft.VisualBasic

Dim textWithNewlines As String = "Some text" & vbLf & "Second line"
pdfDoc.DrawText(textWithNewlines, font, position)

Use Custom Font

We also support using custom fonts with the DrawText method; below is an example with the Pixelify Sans Font added for the text.

:path=/static-assets/pdf/content-code-examples/how-to/draw-text-and-bitmap-draw-custom-font.cs

using IronPdf;
using IronSoftware.Drawing;
using System.IO;

ChromePdfRenderer renderer = new ChromePdfRenderer();
PdfDocument pdf = renderer.RenderHtmlAsPdf("<h1>testing</h1>");

// Add custom font to the PDF
byte[] fontByte = File.ReadAllBytes(@".\PixelifySans-VariableFont_wght.ttf");
var addedFont = pdf.Fonts.Add(fontByte);

// Draw text on PDF
pdf.DrawText("Iron Software", addedFont.Name, FontSize: 12, PageIndex: 0, X: 100, Y: 600, Color.Black, Rotation: 0);

pdf.SaveAs("drawCustomFont.pdf");

Imports IronPdf
Imports IronSoftware.Drawing
Imports System.IO

Private renderer As New ChromePdfRenderer()
Private pdf As PdfDocument = renderer.RenderHtmlAsPdf("<h1>testing</h1>")

' Add custom font to the PDF
Private fontByte() As Byte = File.ReadAllBytes(".\PixelifySans-VariableFont_wght.ttf")
Private addedFont = pdf.Fonts.Add(fontByte)

' Draw text on PDF
pdf.DrawText("Iron Software", addedFont.Name, FontSize:= 12, PageIndex:= 0, X:= 100, Y:= 600, Color.Black, Rotation:= 0)

pdf.SaveAs("drawCustomFont.pdf")

Draw Image Example

With IronPDF's DrawBitmap method, you can easily add bitmaps to an existing PDF document. This method functions similarly to the Image Stamper feature, allowing you to stamp images onto an existing PDF.

Sample image

Code

:path=/static-assets/pdf/content-code-examples/how-to/draw-text-and-bitmap-draw-bitmap.cs

using IronPdf;
using IronSoftware.Drawing;

ChromePdfRenderer renderer = new ChromePdfRenderer();
PdfDocument pdf = renderer.RenderHtmlAsPdf("<h1>testing</h1>");

// Open the image from file
AnyBitmap bitmap = AnyBitmap.FromFile("ironSoftware.png");

// Draw the bitmp on PDF
pdf.DrawBitmap(bitmap, 0, 50, 250, 500, 300);

pdf.SaveAs("drawImage.pdf");

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Output PDF

Ready to see what else you can do? Check out our tutorial page here: Edit PDFs

Chaknith Bin

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Software Engineer

Chaknith is the Sherlock Holmes of developers. It first occurred to him he might have a future in software engineering, when he was doing code challenges for fun. His focus is on IronXL and IronBarcode, but he takes pride in helping customers with every product. Chaknith leverages his knowledge from talking directly with customers, to help further improve the products themselves. His anecdotal feedback goes beyond Jira tickets and supports product development, documentation and marketing, to improve customer’s overall experience.When he isn’t in the office, he can be found learning about machine learning, coding and hiking.

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