Incorrect image sizing

[leftblank]

Hi,

I'm running Processwire 2.3.11, and am uploading images of size 1920px x 1080px into pages. However, when I view the files by opening them in Chrome at the image's URL, opening the inspector indicates they are actually only 1520px x 866px.  Saving the file to the desktop shows that this is indeed the case. 

Why might this be happening?

Thanks.

[Joss]

Have you any settings under Max Width in the settings for the image field?

[leftblank]

Sorry, my mistake. I installed an adaptive images plugin on the server which is dynamically resizing images dependant on device screen size.