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I'm working on the design of a new app. Ideally I could swap from illustrator to photoshop and vice versa since each has its advantages. This works out very well (I use shapes / vectors) except for one thing. Shadows! When I export to psd, the element with shadows from illustrator become images, not shapes. When importing the psd from photoshop, the shadowed elements become images (to trace). Anyone who knows a proper solution to this?