iPhone Life magazine

iWatermark -- $2.99 app lets you digitally sign your photos

A friend has created a useful app if you're serious about photography. iWatermark ($2.99) puts a digital signature on your photos. This can be useful not only for protecting your intellectual property, but also for promoting your brand by having your logo in all your images.

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Jim Karpen's picture

Jim Karpen holds a Ph.D. in literature and writing, and has a love of gizmos. His doctoral dissertation focused on the revolutionary consequences of digital technologies and anticipated some of the developments taking place in the industry today. Jim has been writing about the Internet and technology since 1994 and has been using Apple's visionary products for decades.