I cannot get the full (unmodified) image size using

the_post_thumbnail( 'full' );

I have also tried:


It still returns the cropped image. I can see that the unmodified size is uploaded on the server and there is no problem with that. I checked using


And it returns following sizes:

    [0] => thumbnail
    [1] => medium
    [2] => medium_large
    [3] => large
    [4] => custom_size1

Why there is no full size? Has something changed in the WordPress recent versions or is it something else? Thanks.

Edit: I have figured out that it is the WordPress srcset which is adding multiple image sizes in the URL and it uses the smaller image.

  • Just a wild guess, have you declared the post thumbnail support? Have you tried calling other image sizes? – Abhik Dec 22 '15 at 12:19
  • @Abhik I can get all other sizes correctly, so I guess thre is thumbnail support? Only I cannot get the full image size, instead i get the cropped size. – jay Dec 22 '15 at 12:25
  • Can you post the context where you are using the_post_thumbnail()? It must be inside the loop. – cybmeta Dec 22 '15 at 12:30
  • @cybmeta it's on the single post, within the loop. As I wrote in my question, I can see all other sizes only the full size is not among them. – jay Dec 22 '15 at 12:45
  • It's your own theme? Check if the theme doesn't remove the full size. – Nozifel Dec 22 '15 at 13:16

Try to add custom thumbnail size with unlimited(very big) hegiht and width in functions.php with following code:

add_theme_support( 'post-thumbnails' );
add_image_size( 'custom', 9999, 9999 );

It will not crop any images. So you can use it as the_post_thumbnail( 'custom' );

This method looks rough but you can use if other ways don't work. And if you already have images, you can use regenerate thumbnails plugin.

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