Complex sentence: This means that Quartz Composer will keep vector images as vectors when cropping, scaling, rotating, or translating which allows it to work with very large logical image dimensions without consuming large amounts of memory or processing time.
Split into simpler sentences: This means that it will keep vector images as vectors when cropping, scaling, rotating, or translating. This allows it to work with very large logical image dimensions without consuming large amounts of memory or processing time.