Title: Changing 1024 post_thumb
Last modified: April 23, 2019

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# Changing 1024 post_thumb

 *  [filoumenos](https://wordpress.org/support/users/filoumenos/)
 * (@filoumenos)
 * [7 years ago](https://wordpress.org/support/topic/changing-1024-post_thumb/)
 * Hello everyone!
    I need to change the default 1024xsmth thumbnail to -let’s say-
   a 910x one. Is it possible? And what will happen to my posts that are already
   using the large pos_thumb size? Will they inherit the new size or they will have
   a broken icon image? I am grateful for any help 🙂

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Moderator [t-p](https://wordpress.org/support/users/t-p/)
 * (@t-p)
 * [7 years ago](https://wordpress.org/support/topic/changing-1024-post_thumb/#post-11459210)
 * Try reviewing:
    Plugin: [https://wordpress.org/plugins/regenerate-thumbnails/](https://wordpress.org/plugins/regenerate-thumbnails/)
 * Tutorial: [https://premium.wpmudev.org/blog/bulk-edit-images/](https://premium.wpmudev.org/blog/bulk-edit-images/)
 *  Thread Starter [filoumenos](https://wordpress.org/support/users/filoumenos/)
 * (@filoumenos)
 * [7 years ago](https://wordpress.org/support/topic/changing-1024-post_thumb/#post-11459780)
 * Thanks t-p!
 *  [sinip](https://wordpress.org/support/users/sinip/)
 * (@sinip)
 * [7 years ago](https://wordpress.org/support/topic/changing-1024-post_thumb/#post-11463282)
 * If your theme is written properly then you can use [https://wordpress.org/plugins/simple-image-sizes/](https://wordpress.org/plugins/simple-image-sizes/)
   plugin to change the size of any thumbnail.
 * If you do use it, then all new thumbnails will be of the new size and all old
   thumbnails will keep the old size, **unless** you perform the thumbnail regeneration
   from within that same plugin, in which case all thumbnails will have the new 
   size.
 * Hope this helps, and makes sense. 🙂
 *  Thread Starter [filoumenos](https://wordpress.org/support/users/filoumenos/)
 * (@filoumenos)
 * [7 years ago](https://wordpress.org/support/topic/changing-1024-post_thumb/#post-11463455)
 * Hi [@sinip](https://wordpress.org/support/users/sinip/),
    I was wondering if 
   I could change the default 1024xsmth WP thumb and regenerate only that size. 
   But I am afraid that in my posts, that are already using the 1024 image size,
   they ‘ll end up with a “broken” icon. The truth is that I am deleting manually
   the thumbnails one by one to gain some extra space. So if I regenerate the thumbs
   again, I ”ll get back all those unnecessary sizes which I erased with much effort.
   You see, I made the mistake to upload my images with great filesize. Well, that’s
   not so bad because I wanted to be sure about the quality. But you see in my posts
   I use the large size which is resized finally, to a 910×607 thumb. I would like
   all my 1024 thumbnails to be converted to a 910x 607 thumb, so I can decrease
   a bit the total filesize and gain some space in my server. I know…it is too complicated
   even for me who I am writing this post. I am giving up already. 🙂 Thank you 
   for your time!
 *  [sinip](https://wordpress.org/support/users/sinip/)
 * (@sinip)
 * [7 years ago](https://wordpress.org/support/topic/changing-1024-post_thumb/#post-11464772)
 * Well, what you can do is download the whole `/wp-content/uploads/` folder to 
   your hard drive (all images should be there) and then fire up the plugin and 
   regenerate just that thumbnail size. There’s setting that allows for individual
   thumbnail size regeneration.
 * If anything goes wrong, you’ll have all images intact and you can put the back

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘Changing 1024 post_thumb’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 5 replies
 * 3 participants
 * Last reply from: [sinip](https://wordpress.org/support/users/sinip/)
 * Last activity: [7 years ago](https://wordpress.org/support/topic/changing-1024-post_thumb/#post-11464772)
 * Status: not resolved

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