docusaurus/packages/docusaurus-plugin-ideal-image/README.md
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Signed-off-by: Reece Dunham <me@rdil.rocks>

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Co-authored-by: Sébastien Lorber <slorber@users.noreply.github.com>
2021-01-14 17:16:26 +01:00

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# `@docusaurus/plugin-ideal-image`
Docusaurus Plugin to generate an almost ideal image (responsive, lazy-loading, and low quality placeholder).
## Installation
```sh
yarn add @docusaurus/plugin-ideal-image
```
Modify your `docusaurus.config.js`
```diff
module.exports = {
...
+ plugins: ['@docusaurus/plugin-ideal-image'],
...
}
```
## Usage
Support png, gif and jpg only
```jsx
import Image from '@theme/IdealImage';
import thumbnail from './path/to/img.png';
// your react code
<Image img={thumbnail} />
// or
<Image img={require('./path/to/img.png')} />
```
### Options
| Option | Type | Default | Description |
| --- | --- | --- | --- |
| `name` | `string` | `ideal-img/[name].[hash:hex:7].[width].[ext]` | Filename template for output files. |
| `sizes` | `array` | _original size_ | Specify all widths you want to use; if a specified size exceeds the original image's width, the latter will be used (i.e. images won't be scaled up). You may also declare a default `sizes` array in the loader options in your `webpack.config.js`. |
| `size` | `integer` | _original size_ | Specify one width you want to use; if the specified size exceeds the original image's width, the latter will be used (i.e. images won't be scaled up) |
| `min` | `integer` | | As an alternative to manually specifying `sizes`, you can specify `min`, `max` and `steps`, and the sizes will be generated for you. |
| `max` | `integer` | | See `min` above |
| `steps` | `integer` | `4` | Configure the number of images generated between `min` and `max` (inclusive) |
| `quality` | `integer` | `85` | JPEG compression quality |