# Change the Big Image Size Limit

> Sets the size above which WordPress scales down very large uploaded images (2560 pixels by default), for example to 1920 pixels to save disk space and bandwidth.

- Type: PHP
- Runs: Run everywhere
- Category: [Media](https://wpide.com/library/category/media/)
- Tags: images, uploads, resize
- Author: WPIDE Team
- Installs: 0
- Updated: 2026-10-28
- Page: https://wpide.com/library/change-big-image-threshold/

## Code

```php
// Longest side in pixels before an uploaded image is scaled down.
$wpide_big_image_threshold = 1920;

add_filter( 'big_image_size_threshold', function () use ( $wpide_big_image_threshold ) {
    return max( 600, (int) $wpide_big_image_threshold );
} );
```

## Notes

The original file is kept on the server; WordPress uses the scaled copy everywhere. To turn scaling off completely use the Disable Big Image Scaling snippet instead.

## How to use it

Install the free WPIDE plugin (https://wordpress.org/plugins/wpide/), find "Change the Big Image Size Limit" in its snippet library and add it in one click; or create a new PHP snippet in WPIDE (or any code snippets plugin) and paste the code above. More snippets: https://wpide.com/library/