Can a buyer make changes to an editorial image purchased on IS

[malamus]

Can a buyer make changes to an editorial image purchased on IS. by changes I specifically mean change the days left on the london olympic clock

Thanks

(can't ask this on IS)

[Ploink]

From my understanding it would be okay, as long as the image is marked as "montage", "digitally altered" when it is used. I see digitally altered photos as editorials in newspapers all the time.

I could not find anything on IS regarding the question if their usage terms allow it or not...