Embedding Bitmaps and Images

VB C#

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

ChromePdfRenderer renderer = new ChromePdfRenderer();

// Import image file as byte
byte[] pngBinaryData = File.ReadAllBytes("use your image here");
byte[] base64Bytes = new byte[3]; // Use your own here

// Convert byte to base64
string imgDataUri = @"data:image/png;base64," + Convert.ToBase64String(base64Bytes);
string imgHtml = $"<img src='{imgDataUri}'>";

PdfDocument pdf = renderer.RenderHtmlAsPdf(imgHtml);
pdf.SaveAs("embedded_example_1.pdf");

Imports IronPdf
Imports IronSoftware.Drawing
Imports System
Imports System.IO

Private renderer As New ChromePdfRenderer()

' Import image file as byte
Private pngBinaryData() As Byte = File.ReadAllBytes("use your image here")
Private base64Bytes(2) As Byte ' Use your own here

' Convert byte to base64
Private imgDataUri As String = "data:image/png;base64," & Convert.ToBase64String(base64Bytes)
Private imgHtml As String = $"<img src='{imgDataUri}'>"

Private pdf As PdfDocument = renderer.RenderHtmlAsPdf(imgHtml)
pdf.SaveAs("embedded_example_1.pdf")

Install-Package IronPdf

Embedding Bitmaps and Images

To embed an image in HTML using base64 encoding, you need to acquire the binary data of the image either by reading the image file or receiving it through a network request. Afterward, convert the binary data to base64 using the Convert.ToBase64String method in Microsoft .NET. When constructing the image tag in HTML, prepend "data:image/svg+xml;base64," before the base64 data. Note that specifying the image type before the base64 data is essential. For further details on image format types, refer to the MDN Web Docs on Image Types.

Discover more ways to add images in the following article: How to Add Images to PDFs with Base64 Example.