1. IronPDF
2. How-Tos
3. Draw Text & Bitmap

How to Draw Text and Bitmap on PDFs

by Chaknith Bin

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.

Get started with IronPDF

Start using IronPDF in your project today with a free trial.

First Step:

Start for Free

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");

IRON VB CONVERTER ERROR developers@ironsoftware.com

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

Change Text Font On Draw Image

For the standard fonts we can pass the name of the font we want to DrawText method to use it.Below is an example with TimesNewRoman.

ChromePdfRenderer renderer = new ChromePdfRenderer();
PdfDocument pdf = renderer.RenderHtmlAsPdf("testing");
pdf.DrawText("Iron Software", IronSoftware.Drawing.FontTypes.TimesNewRoman, FontSize: 24, PageIndex: 0, X: 100, Y: 500, IronSoftware.Drawing.Color.Black, Rotation: 0);
pdf.SaveAs("output.pdf");

ChromePdfRenderer renderer = new ChromePdfRenderer();
PdfDocument pdf = renderer.RenderHtmlAsPdf("testing");
pdf.DrawText("Iron Software", IronSoftware.Drawing.FontTypes.TimesNewRoman, FontSize: 24, PageIndex: 0, X: 100, Y: 500, IronSoftware.Drawing.Color.Black, Rotation: 0);
pdf.SaveAs("output.pdf");

Dim renderer As New ChromePdfRenderer()
Dim pdf As PdfDocument = renderer.RenderHtmlAsPdf("testing")
pdf.DrawText("Iron Software", IronSoftware.Drawing.FontTypes.TimesNewRoman, FontSize:= 24, PageIndex:= 0, X:= 100, Y:= 500, IronSoftware.Drawing.Color.Black, Rotation:= 0)
pdf.SaveAs("output.pdf")

Add Custom Text Font on Draw Image

We also support using custom fonts with the DrawText method; below is an example with the PixelifySans font added for the text.

ChromePdfRenderer renderer = new ChromePdfRenderer();

PdfDocument pdf = renderer.RenderHtmlAsPdf("testing");

byte[] fontBytes = File.ReadAllBytes(@"\fonts\PixelifySans-VariableFont_wght.ttf");
var addedFont = pdf.Fonts.Add(fontBytes);
pdf.DrawText("Iron Software", addedFont.Name, FontSize: 24, PageIndex: 0, X: 100, Y: 500, IronSoftware.Drawing.Color.Black, Rotation: 0);

pdf.SaveAs("output.pdf");

ChromePdfRenderer renderer = new ChromePdfRenderer();

PdfDocument pdf = renderer.RenderHtmlAsPdf("testing");

byte[] fontBytes = File.ReadAllBytes(@"\fonts\PixelifySans-VariableFont_wght.ttf");
var addedFont = pdf.Fonts.Add(fontBytes);
pdf.DrawText("Iron Software", addedFont.Name, FontSize: 24, PageIndex: 0, X: 100, Y: 500, IronSoftware.Drawing.Color.Black, Rotation: 0);

pdf.SaveAs("output.pdf");

Dim renderer As New ChromePdfRenderer()

Dim pdf As PdfDocument = renderer.RenderHtmlAsPdf("testing")

Dim fontBytes() As Byte = File.ReadAllBytes("\fonts\PixelifySans-VariableFont_wght.ttf")
Dim addedFont = pdf.Fonts.Add(fontBytes)
pdf.DrawText("Iron Software", addedFont.Name, FontSize:= 24, PageIndex:= 0, X:= 100, Y:= 500, IronSoftware.Drawing.Color.Black, Rotation:= 0)

pdf.SaveAs("output.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");

IRON VB CONVERTER ERROR developers@ironsoftware.com

Output PDF

Chaknith Bin

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.