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Why to slice at all?
What is the purpose of slicing? Why would one design a website in Photoshop as one big image and then slice it up into small pieces?
Wouldn't one start with creating all the elements of the website separately and then just arranging them together? Then one would have all the single elements already and wouldn't have to do this slicing.
Am I missing something here?
Kind Regards, Florian
I think the benefit of having all your elements in one Photoshop file but on different layers is that you have your whole website design in one place. Therefore it's easier to move elements around or make changes to the design. Something that's a lot more difficult to do when all your elements are saved in separate files.
Then slicing and optimizing for web is there to help you export the elements that you need for your site in the right format (things like images or illustrations), while leaving your Photoshop mock-up intact.