Alec Rust

I understand from other answers that these different thumbnail sizes are in fact only generated on image upload (rather than image embed) can anyone confirm this?

Thank you esmi, that’s answered my question.

1 and 2 if the image is set to 540 by 540px. Try 540 by 420px

I’d rather not, since I want to allow images to be uploaded at any dimensions and just the width be forced to 540px. As esmi has said though as long as it resizes proportionally I can set the height to a large number (e.g. 1024).

OK, so if I set a height value (say 540px) what does that mean exactly:

1. The image just won’t exceed that height and the resulting thumbnail will be the correct 540x405px

or

2. The image gets distorted and resized to 540x540px

But I don’t want to set the height, I just want to make sure generated thumbnails don’t exceed the width of 540px. So for example in this instance the image (if proportions are retained) would have a width of 540px and a height of 405px (as it shows in my screenshot).

Setting the height value to “0” means a particular height won’t be forced, correct?

That’s a shame. I’m looking to re-index these posts and generate attachment pages for each currently embedded image.

From my understanding these plugins won’t take embedded images and turn them in to thumbnails linking to attachment pages?

And here’s the answer:

https://wordpress.stackexchange.com/questions/43320/query-to-delete-all-featured-images-and-remove-post-meta

I too am looking for an answer to this!