Tool usage guide

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Category: Media
Input types: file, number, range, color, select
Output type: file
Sample coverage: 4
API ready: Yes

Overview

The Blur Background Image Extender allows you to increase the canvas size of your photos while seamlessly filling the new space with a blurred, bokeh-style version of your original image. It is an ideal solution for adjusting aspect ratios, adding padding for social media layouts, or creating a professional depth-of-field effect for product photography.

When to use

Adjusting portrait or product photos to fit specific social media aspect ratios without cropping.
Adding extra padding around an image to create a clean, professional presentation layout.
Enhancing images by adding a soft, blurred background effect to draw focus to the main subject.

How it works

1Upload your image file (JPEG, PNG, WebP, TIFF, GIF, or BMP).
2Define the extension size using either uniform padding or specific values for the top, bottom, left, and right edges.
3Adjust the blur strength and optional background overlay color to achieve your desired aesthetic.
4Select your preferred output format and quality settings, then process the image to download your extended file.

Use cases

Preparing portrait photos for Instagram or LinkedIn by adding blurred side padding to fit a square or vertical frame.
Creating professional product catalog images by extending the canvas to provide more negative space around the item.
Standardizing a collection of images with different original dimensions into a uniform size for a presentation.

Examples

1. Social Media Portrait Adjustment

Content Creator

Background

A vertical portrait photo needs to be posted on a platform that requires a square aspect ratio.

Problem

Cropping the photo would cut off important details, but the image needs to fit a square frame.

How to use

Upload the portrait, set the left and right padding to 250 pixels each, and increase the blur strength to 50.

leftPadding: 250, rightPadding: 250, blurStrength: 50

Outcome

The portrait is centered with a soft, blurred background extending to the sides, creating a perfect square image without losing any of the original subject.

2. Product Photo Padding

E-commerce Manager

Background

Product photos have varying dimensions, making the website gallery look inconsistent.

Problem

The product images are too close to the edge of the frame, making them look cramped.

How to use

Upload the product image, apply a uniform padding of 100 pixels, and set the output format to PNG.

FAQ

What image formats are supported?

The tool supports JPEG, PNG, WebP, TIFF, GIF, and BMP formats.

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

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

How does the blur effect work?

The tool takes the edges of your original image, extends them into the new canvas area, and applies a Gaussian-style blur to create a smooth, bokeh-like background.

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

You can add up to 500 pixels of padding to each side of the image.

Can I change the color of the blurred background?

Yes, you can use the Background Overlay Color option to blend a specific color with the blurred background and adjust its opacity.

uniformPadding: 100, format: 'png'

Blur Background Image Extender

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Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Overview

When to use

How it works

Use cases

Examples

1. Social Media Portrait Adjustment

2. Product Photo Padding

FAQ

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