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Image Background Extender

Extend image canvas with solid color background, perfect for product photos, social media content, and standardizing image dimensions

Click to upload file or drag and drop file here

Maximum file size: 20MB Supported formats: image/jpeg, image/png, image/webp, image/tiff, image/gif, image/bmp

Upload any image file (JPEG, PNG, WebP, TIFF, GIF, BMP)

Choose how to extend the image canvas

Background color for the extended area (default: white)

Padding to add on all sides when using uniform mode

Padding to add to the top edge

Padding to add to the right edge

Padding to add to the bottom edge

Padding to add to the left edge

Choose output format or keep original

Output quality for lossy formats (JPEG, WebP). Higher = better quality but larger file size

Key Facts

Category
Media
Input Types
file, select, color, number
Output Type
file
Sample Coverage
4
API Ready
Yes

Overview

The Image Background Extender allows you to increase your image canvas size by adding a solid color border, helping you standardize dimensions for product listings or social media layouts.

When to Use

  • •Adding consistent whitespace around product photos for e-commerce platforms.
  • •Adjusting image aspect ratios to fit specific social media post requirements.
  • •Creating a uniform border or frame around images for a professional presentation.

How It Works

  • •Upload your image file in any supported format like JPEG, PNG, or WebP.
  • •Select your preferred extend mode to apply either uniform padding or custom dimensions to specific sides.
  • •Choose a background color and adjust the output format or quality settings if needed.
  • •Download your newly extended image with the applied canvas changes.

Use Cases

Standardizing product image sizes for a clean, consistent e-commerce gallery.
Adding padding to square images to make them compatible with portrait or landscape social media feeds.
Creating a solid color border around images to highlight them within a document or presentation.

Examples

1. Standardizing Product Photos

E-commerce Store Owner
Background
Product photos have varying dimensions, making the store gallery look disorganized.
Problem
Need to add uniform white padding to all images to ensure they appear as consistent squares.
How to Use
Upload the product image, select 'Uniform Padding', set the value to 100px, and keep the background color as white.
Example Config
extendMode: uniform, uniformPadding: 100, backgroundColor: #ffffff
Outcome
The image is centered within a clean white square frame, ready for the product catalog.

2. Social Media Post Formatting

Social Media Manager
Background
A landscape photo needs to be posted on a platform that favors vertical layouts.
Problem
The image is too wide and needs extra space at the top and bottom to fit the required aspect ratio.
How to Use
Upload the image, select 'Individual Sides', and add 200px of padding to both the top and bottom.
Example Config
extendMode: individual, topPadding: 200, bottomPadding: 200, backgroundColor: #000000
Outcome
The image is now vertically oriented with a professional black border at the top and bottom.

Try with Samples

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FAQ

What image formats are supported?

You can upload JPEG, PNG, WebP, TIFF, GIF, and BMP files.

Can I add padding to only one side of the image?

Yes, select 'Individual Sides' mode to specify unique pixel values for the top, right, bottom, and left edges.

Is there a limit to how much I can extend the canvas?

You can add up to 1000 pixels of padding to any side.

Can I change the file format during the process?

Yes, you can choose to keep the original format or convert the output to JPEG, PNG, or WebP.

Does this tool change the original image quality?

If you choose a lossy format like JPEG or WebP, you can adjust the quality slider from 1 to 100 to balance file size and visual clarity.

API Documentation

Request Endpoint

POST /en/api/tools/image-extend-background

Request Parameters

Parameter Name Type Required Description
imageFile file (Upload required) Yes Upload any image file (JPEG, PNG, WebP, TIFF, GIF, BMP)
extendMode select Yes Choose how to extend the image canvas
backgroundColor color No Background color for the extended area (default: white)
uniformPadding number No Padding to add on all sides when using uniform mode
topPadding number No Padding to add to the top edge
rightPadding number No Padding to add to the right edge
bottomPadding number No Padding to add to the bottom edge
leftPadding number No Padding to add to the left edge
format select No Choose output format or keep original
quality number No Output quality for lossy formats (JPEG, WebP). Higher = better quality but larger file size

File type parameters need to be uploaded first via POST /upload/image-extend-background to get filePath, then pass filePath to the corresponding file field.

Response Format

{
  "filePath": "/public/processing/randomid.ext",
  "fileName": "output.ext",
  "contentType": "application/octet-stream",
  "size": 1024,
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}
File: File

AI MCP Documentation

Add this tool to your MCP server configuration: 

{
  "mcpServers": {
    "elysiatools-image-extend-background": {
      "name": "image-extend-background",
      "description": "Extend image canvas with solid color background, perfect for product photos, social media content, and standardizing image dimensions",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=image-extend-background",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

Supports URL file links or Base64 encoding for file parameters.

If you encounter any issues, please contact us at [email protected]