Title: Image Source
Last modified: April 17, 2025

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# Image Source

 *  Resolved [Josh Journey](https://wordpress.org/support/users/ljosh/)
 * (@ljosh)
 * [1 year ago](https://wordpress.org/support/topic/image-source-3/)
 * Justified Gallery displays beautifully! I was wondering if there is a hook to
   change the image source for thumbnails? Currently it loads all original images
   from the post, which I’d like to use the medium image. I know some PHP, can precisely
   measure pixel width of the biggest thumbnails vs size of medium using element
   inspector, and can re-generate any image/modify the sizes. Any help would be 
   greatly appreciated. 😊
 * Warm regards,
   Josh

Viewing 1 replies (of 1 total)

 *  Thread Starter [Josh Journey](https://wordpress.org/support/users/ljosh/)
 * (@ljosh)
 * [1 year ago](https://wordpress.org/support/topic/image-source-3/#post-18425065)
 * I see it’s automatic based on available size. So if a medium photo is 500px and
   the image stretches to 503px it goes to the next size up. This is very good. 
   Marking as resolved as I’ll sort this.

Viewing 1 replies (of 1 total)

The topic ‘Image Source’ is closed to new replies.

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## Tags

 * [image source](https://wordpress.org/support/topic-tag/image-source/)
 * [thumbnails](https://wordpress.org/support/topic-tag/thumbnails/)

 * 1 reply
 * 1 participant
 * Last reply from: [Josh Journey](https://wordpress.org/support/users/ljosh/)
 * Last activity: [1 year ago](https://wordpress.org/support/topic/image-source-3/#post-18425065)
 * Status: resolved