Image Transformer

Description

Image Transformer provides a small service for validating, resizing, and optimizing uploaded images.

It wraps Intervention Image for resize operations and Spatie's image optimizer for post-processing, while enforcing a limited set of supported image mime types before any transformation is attempted.

The package is useful in upload flows where images should be normalized before storage, for example avatars, covers, gallery images, or document attachments that need size limits and optimization.

Installation

Install the package:

composer require laravel-enso/image-transformer

The package relies on:

• intervention/image-laravel for reading and resizing images
• spatie/laravel-image-optimizer for optimization

To use resizing, the runtime must have at least one supported image extension installed:

• gd
• imagick

Features

• Validates uploaded files before transformation.
• Supports png, jpeg, gif, and webp images.
• Optimizes images in place through Spatie's optimizer chain.
• Resizes images proportionally by width, by height, or by both through resize().
• Prevents upsizing by only resizing when the original image is larger than the requested dimension.
• Saves transformations back to the original file path.

Usage

Create a transformer from an uploaded file:

use LaravelEnso\ImageTransformer\Services\ImageTransformer;

$transformer = new ImageTransformer($file);

Optimize the original file:

$transformer->optimize();

Resize proportionally to a maximum width:

$transformer->width(512);

Resize proportionally to a maximum height:

$transformer->height(512);

Apply both constraints in sequence:

$transformer->resize(1024, 768);

API

Service

LaravelEnso\ImageTransformer\Services\ImageTransformer

Constructor:

• __construct(File $file)

Public methods:

• optimize(): self
• resize(int $width, int $height): self
• width(int $width): self
• height(int $height): self

Supported Mime Types

The service accepts:

• image/png
• image/jpeg
• image/gif
• image/webp

Exceptions

The package exposes:

• LaravelEnso\ImageTransformer\Exceptions\File
• LaravelEnso\ImageTransformer\Exceptions\Dependency

Scenarios covered:

• invalid uploaded file
• unsupported mime type
• missing gd / imagick extension when resizing

Depends On

Required Enso packages:

• laravel-enso/helpers ↗

External dependencies:

• intervention/image-laravel ↗
• spatie/laravel-image-optimizer ↗

Contributions

are welcome. Pull requests are great, but issues are good too.

Thank you to all the people who already contributed to Enso!