04FS
2020-10-01 22:24:16
You can use the big_image_size_threshold filter to change or disable this behavior.
https://developer.wordpress.org/reference/hooks/big_image_size_threshold/
If the original image width or height is above the threshold, it will be scaled down. The threshold is used as max width and max height. The scaled down image will be used as the largest available size, including the _wp_attached_file post meta value.
Returning false from the filter callback will disable the scaling.
Thanks @04FS, that did the trick for me. However, just to note, before I implemented this change, when I tried to upload the larger files, they actually did upload, but they were displayed in the media library as a blank image icon. If you clicked on it, you did get the attachment detail page, but you couldn't insert the image into any page. But if you wanted to link to the image, you could use the file URL provided on the detail page. So it was there in its full size, just not very usable! The above explanation doesn't seem to fit what I was seeing.. the image wasn't scaled down.
For people searching on usage, here is how I entered it in my functions.php file: function td_big_image_size_threshold( $threshold, $imagesize, $file, $attachment_id ) { return 5000; } add_filter( 'big_image_size_threshold', 'td_big_image_size_threshold', 10, 4 );