How to Add, Extract, and Remove Images from Worksheets
Introduction
By adding images, users can enrich their data with relevant graphics or illustrations. Removing or deleting images simplifies content editing and organization. Additionally, the ability to retrieve images allows for repurposing them in other documents or applications, as well as updating existing images. Collectively, these features enhance user control over images, improve the overall user experience, and enable seamless image manipulation within Excel workbooks.
How to Add, Extract, and Remove Images from Worksheets
- Download the C# library to insert, extract, and remove images from spreadsheets
- Import an existing Excel file or create a new one
- Use the
InsertImagemethod to insert an image into the worksheet - Access the Images property to extract images and their information
- Supply the ID to the
RemoveImagemethod to remove the image
Install with NuGet
Install-Package IronXL.Excel
Add Images Example
To insert an image into a spreadsheet, utilize the InsertImage method, which supports various image types, such as JPG/JPEG, BMP, PNG, GIF, and TIFF. You must specify the top-left and bottom-right corners of the image to determine its dimensions, calculated by subtracting the column and row values. For example, you can try the following approaches:
- For a 1x1 image size:
- worksheet.InsertImage("image.gif", 5, 1, 6, 2);
- For a 2x2 image size:
- worksheet.InsertImage("image.gif", 5, 1, 7, 3);
Please note
:path=/static-assets/excel/content-code-examples/how-to/add-remove-extract-worksheet-images-insert.csusing IronXL;
WorkBook workBook = WorkBook.Create();
WorkSheet workSheet = workBook.DefaultWorkSheet;
// Insert images
workSheet.InsertImage("ironpdf.jpg", 2, 2, 4, 4);
workSheet.InsertImage("ironpdfIcon.png", 2, 6, 4, 8);
workBook.SaveAs("insertImages.xlsx");Imports IronXL
Private workBook As WorkBook = WorkBook.Create()
Private workSheet As WorkSheet = workBook.DefaultWorkSheet
' Insert images
workSheet.InsertImage("ironpdf.jpg", 2, 2, 4, 4)
workSheet.InsertImage("ironpdfIcon.png", 2, 6, 4, 8)
workBook.SaveAs("insertImages.xlsx")Output Spreadsheet
Extract Images Example
To extract images from the selected worksheet, simply access the Images property, which provides a list of all the images contained within the sheet. From this list, you can perform various operations such as exporting, resizing, retrieving positions, and obtaining the byte data of each image. Notably, the image IDs follow an odd-numbered pattern, incrementing in the sequence of 1, 3, 5, 7, and so on.
:path=/static-assets/excel/content-code-examples/how-to/add-remove-extract-worksheet-images-extract.csusing IronSoftware.Drawing;
using IronXL;
using IronXL.Drawing;
using System;
using System.Collections.Generic;
WorkBook workBook = WorkBook.Load("insertImages.xlsx");
WorkSheet workSheet = workBook.DefaultWorkSheet;
// Retreive images
List<IronXL.Drawing.Images.IImage> images = workSheet.Images;
// Select each image
foreach (IronXL.Drawing.Images.IImage image in images)
{
// Save the image
AnyBitmap anyBitmap = image.ToAnyBitmap();
anyBitmap.SaveAs($"{image.Id}.png");
// Resize the image
image.Resize(1,3);
// Retrieve image position
Position position = image.Position;
Console.WriteLine("top row index: " + position.TopRowIndex);
Console.WriteLine("bottom row index: " + position.BottomRowIndex);
// Retrieve byte data
byte[] imageByte = image.Data;
}
workBook.SaveAs("resizeImage.xlsx");Imports IronSoftware.Drawing
Imports IronXL
Imports IronXL.Drawing
Imports System
Imports System.Collections.Generic
Private workBook As WorkBook = WorkBook.Load("insertImages.xlsx")
Private workSheet As WorkSheet = workBook.DefaultWorkSheet
' Retreive images
Private images As List(Of IronXL.Drawing.Images.IImage) = workSheet.Images
' Select each image
For Each image As IronXL.Drawing.Images.IImage In images
' Save the image
Dim anyBitmap As AnyBitmap = image.ToAnyBitmap()
anyBitmap.SaveAs($"{image.Id}.png")
' Resize the image
image.Resize(1,3)
' Retrieve image position
Dim position As Position = image.Position
Console.WriteLine("top row index: " & position.TopRowIndex)
Console.WriteLine("bottom row index: " & position.BottomRowIndex)
' Retrieve byte data
Dim imageByte() As Byte = image.Data
Next image
workBook.SaveAs("resizeImage.xlsx")
Extracted Images
Image Size
Remove Image Example
Following the extract images example, you can easily remove any inserted image using its corresponding index number. Simply pass the image's ID number to the RemoveImage method to remove it from the worksheet.
:path=/static-assets/excel/content-code-examples/how-to/add-remove-extract-worksheet-images-remove.csusing IronXL;
WorkBook workBook = WorkBook.Load("insertImages.xlsx");
WorkSheet workSheet = workBook.DefaultWorkSheet;
// Remove image
workSheet.RemoveImage(3);
workBook.SaveAs("removeImage.xlsx");Imports IronXL
Private workBook As WorkBook = WorkBook.Load("insertImages.xlsx")
Private workSheet As WorkSheet = workBook.DefaultWorkSheet
' Remove image
workSheet.RemoveImage(3)
workBook.SaveAs("removeImage.xlsx")
