Disable "BIG Image" Threshold


In WordPress 5.3, several improvements were made to how images are processed. One of these improvements was the concept of “BIG images”. When an image is uploaded that exceeds the “BIG image” threshold (2560 by default), a new “full” size image is generated. This new image is then used instead of the true original when generating image subsizes to reduce server load.

Prior to 5.3, it was possible for the originally uploaded image to be displayed on the front-end, even when they were not “web ready”. Unnecessarily large images can be bad for performance and wastes bandwidth (which is unfortunate for those with slow Internet, or bandwidth caps by their service plans). This new full size image will now be displayed instead.

There are some scenarios where disabling this threshold would be desired, though. Maybe you run a photography site that
needs to display original images, or your theme has full screen backgrounds.

This plugin disables the “BIG” image threshold and preserves the true originally uploaded image as the full size.

For more information on the improvements to image processing in WordPress 5.3, check out these developer notes on the Making WordPress Core blog.


  1. Upload this plugin to the /wp-content/plugins/ directory
  2. Activate the plugin through the ‘Plugins’ menu in WordPress


This is brand new, so there are no questions that have been asked frequently yet!


January 27, 2020
Images are integral to the look and feel of the posts I publish on my website. Not being technical and unable to load images of a certain size I feared the worst...but after reading on forums that many others were receiving the same error message and that this plugin was available I was able to breathe easily once again!! Thank you so much, Jonathan
January 24, 2020
Hi - I was really surprised about this restrictive function. I did notice the fact that my panos were realy 'washed'. Thank you
January 21, 2020
All complains about the implementation of the new "BIG image" enhancements are dismissed with a suggestion to just install this plugin to disable it. Well, now I have the plugin installed and there is still no solution to the "Post-processing of the image failed. If this is a photo or a large image, please scale it down to 2500 pixels and upload it again" error! Just add an option to disable it already.
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Contributors & Developers

“Disable "BIG Image" Threshold” is open source software. The following people have contributed to this plugin.


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