We are a photography forum.
We want to limit image uploads to 1.2 MB but avoid any kind of recompression when the image complies with that limit.
We would prefer that if the images is bigger, the user is adviced and don’t let him upload it.
But I have not found how to do that.
When someones uploads an image that is a bit more heavy, the system agressively redimensions and recompress it, and users complain that the forum has ruined their photo (less detail, color gradation, etc).
With the addition image composer options (recently) things are worse. Even images that weight less than 1.2 MB are recompressed.
We want to avoid any kind of intervention on the user image (it is his responsability tweaking the image to his like with the limitation in weight and size).
At least with images that adhere to given limitation.
How to best configure options to get this behaviour?
I think we cannot avoid recompression in images that do not complain with limits, but at least we want to avoid it in images that comply and control compression of the ones that exceed.
Forum tends to compress them too much and give results like 200KB and 900 pixels in large side.