Support » Fixing WordPress » WordPress Media Library loading full size images for thumbnails

  • Hello people. I am having a problem with the media library. All the images upload fine and all, but when i click media library, wordpress loads thumbnails, but the thumbnails are full sized files in thumbnail form. Is there a fix for this? or should i just leave wordpress? It is making the media library load extremely slow and i am unable to make galleries as a result.

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  • Tim Smith


    This happens if you do not have medium sized images (0x0) or if they are themselves very large.

    At present all you can do is have medium sized images at the default size (300×300). You should be able to set this in the options unless your theme is stopping you, but you will need to use a regenrate images plugin to create the size you need.

    If you need an image at your current medium dimensions then you’ll have to modify your theme or plugin to create one using add_image_size and change usage of ‘medium’ to whatever name you chose.

    ttran14: what is your “medium size” set in Settings > Media?

    I have exact same issue and mine medium image size is set to the default 300 x 300 and images are generated on filesystem:

    -rw-r--rw- 1 www-data www-data 9325 May 27 02:24 image1-150x150.jpg
    -rw-r--rw- 1 www-data www-data 25630 May 27 02:24 image1-300x225.jpg
    -rw-r--r-- 1 www-data www-data 593980 May 21 23:04 image1.jpg

    but full size image is still used, check screenshot:

    I noticed that many have this issue since 3.5 and found only temporary solution (which is not best in my case)):

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