WP Ubuntu/Mac image conversion differences

On my local Mac when i upload a image it gets converted into a 300x300 thumbnail which looks good

When i upload the same image on my ubuntu based production server the quality is worse than my local mac and the image file size is larger.

Does anyone have an idea why that is?

The theme used is EXACTLY the same. Plugins are the same. Wordpress is the latest on both machines: 4.3.1.

i have attached both images to show the difference:

From mac

from mac http://artcast.dk/cassandra-300x300-local.jpg

From ubuntu server

from server http://artcast.dk/cassandra-300x300-from-server.jpg

Topic mac Wordpress

Category Web


I assume, probably either different settings for the image processing library or different libraries in use, e.g. ImageMagick on local and GD on production.

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