Ugly and unuseful image resize

I don't understand why concrete5.7.5.4 is resizing files, moreover a little png file like a logo, to a crappy version, with the same dimensions. I've searched but I don't find how to change this behaviour.

Could you help ? Thank you...

View Replies:
gavthompson replied on at Permalink Reply
Not sure if you are referring to the new Image Resizing feature introduced in but if you are you can turn it off by navigating to dashboard/system/files/image_uploading
djes replied on at Permalink Reply
Thank you for your reply, badly it doesn't solve anything, activated or not, cache cleared before/after.
MrKDilkington replied on at Permalink Reply
Hi djes,

I just tried to recreate what you described without success.

When "Automatically resize uploaded images" is unchecked, images are not being resized or compressed.

Please zip your original PNG file and the concrete5 resized PNG file and attach them as a reply.
djes replied on at Permalink Reply 1 Attachment
Thank you ! Surely Murphy has something to do with that. Here's the file. I precise that this happens only on a asus portable with a screen resolution of 1366x768
djes replied on at Permalink Reply
Don't trash your head on this. This morning images are allright. I don't see how concrete5 would have done this, it may be some proxy doing hard image re-encode on my internet access.

Sorry to have taken your time.