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Gradient Image Extender

Extend image canvas with gradient backgrounds for modern design effects and smooth transitions

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 the type of gradient background

Starting color of the gradient

Ending color of the gradient

Angle for linear gradient (0-360 degrees)

Extension to add on all sides

Extension to add to the top edge

Extension to add to the right edge

Extension to add to the bottom edge

Extension 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 Gradient Image Extender allows you to expand your image canvas by adding custom linear or radial gradient backgrounds, perfect for creating modern design layouts, social media headers, or professional presentation assets.

When to Use

  • •When you need to add extra space around an image for text placement or design elements.
  • •When you want to create a smooth, professional transition between an image and a background.
  • •When you need to resize an image to specific dimensions while maintaining a clean, aesthetic backdrop.

How It Works

  • •Upload your image file in any supported format like JPEG, PNG, or WebP.
  • •Select your preferred gradient type and define the start and end colors.
  • •Specify the extension padding for each side or use uniform padding to expand the canvas.
  • •Adjust the output format and quality settings, then process the image to download your result.

Use Cases

Creating social media posts by extending a portrait photo into a landscape format with a matching gradient background.
Adding padding to product images to ensure they fit perfectly within standardized website gallery frames.
Generating professional presentation slides by extending images to fill the entire slide area with a soft color fade.

Examples

1. Social Media Banner Creation

Content Creator
Background
A vertical portrait photo needs to be converted into a wide banner for a blog header.
Problem
The image is too narrow and lacks the necessary space for overlaying text.
How to Use
Upload the portrait image, set the left and right padding to 200 pixels each, and select a linear gradient that matches the brand colors.
Example Config
gradientType: linear, startColor: #4f46e5, endColor: #818cf8, angle: 90, leftPadding: 200, rightPadding: 200
Outcome
A wide, professional banner with the original image centered and a smooth color transition on both sides.

2. Product Gallery Standardization

E-commerce Manager
Background
Product photos have inconsistent dimensions, making the store gallery look unorganized.
Problem
Images need to be uniform in size without cropping the actual product.
How to Use
Upload the product image and apply uniform padding to create a consistent canvas size with a subtle radial gradient background.
Example Config
gradientType: radial, startColor: #ffffff, endColor: #f3f4f6, uniformPadding: 50
Outcome
All product images are now perfectly centered within a uniform frame, creating a clean and professional store layout.

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 control the direction of the gradient?

Yes, for linear gradients, you can specify the angle in degrees from 0 to 360.

Is it possible to add padding to only one side?

Yes, you can use the individual top, right, bottom, and left padding fields to add space to specific edges.

Does this tool change the original image quality?

You can choose to keep the original format or convert it to JPEG, PNG, or WebP with adjustable quality settings.

What is the maximum file size I can upload?

The tool supports file uploads up to 20 MB.

API Documentation

Request Endpoint

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

Request Parameters

Parameter Name Type Required Description
imageFile file (Upload required) Yes Upload any image file (JPEG, PNG, WebP, TIFF, GIF, BMP)
gradientType select Yes Choose the type of gradient background
startColor color Yes Starting color of the gradient
endColor color Yes Ending color of the gradient
angle number No Angle for linear gradient (0-360 degrees)
uniformPadding number No Extension to add on all sides
topPadding number No Extension to add to the top edge
rightPadding number No Extension to add to the right edge
bottomPadding number No Extension to add to the bottom edge
leftPadding number No Extension 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-gradient 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-gradient": {
      "name": "image-extend-gradient",
      "description": "Extend image canvas with gradient backgrounds for modern design effects and smooth transitions",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=image-extend-gradient",
      "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]