After syncing a JPEG photo from ITUNES to IPAD, how large is the file on IPAD? does the answer depend on the size of the original JPEG file in ITUNES?

1)  Does downsizing the original jpeg photos to be synced with IPAD help reduce the total storage required on IPAD for the photos? What is the relationship between original JPEG file size in ITUNES vs final synced photo file size on IPAD?

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